打造自己的 C# WinForm 应用程序的 SQL Server 连接配置界面

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打造自己的 C# WinForm 应用程序的 SQL Server 连接配置界面
在C# WinForm 应用程序非常需要一个 SQL Server 连接配置界面，许多时候，因 SQL Server 服务器地址变更或数据库登录账户变更引起的连接失败等情况，客户就可能打电话“找麻烦”。既然这样，还不如提供一个可视化的配置界面，并在用户手册中说明使用方法，尽可能避免这种小问题带来的烦恼。为此，我将自己无聊时写的连接配置源码贴出来给初学者参考，以备不时之需！

想必大家都很熟悉VS服务器资源管理器中的【添加连接】对话框吧！下面是它的截图：

再看看我模仿这个对话框打造的WinForm程序SQL Server 连接配置界面：

呵呵！有几分相似吧！需要的朋友可以参考下面的源码。这份源码是完整的，粘贴到VS中即可使用。

窗体源码：
using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.IO;

using System.Windows.Forms;

using System.Data.Sql;

using System.Data.SqlClient;

using System.Configuration;

namespace CodingMouse.CMCSharpSDK.UI.Forms

{

    /// <summary>

    /// 数据库连接配置界面

    /// </summary>

    public partial class frmConnectionConfig : Form

    {

        #region Private Members

        /// <summary>

        /// SQL Server 连接字符串创建者对象

        /// </summary>

        SqlConnectionStringBuilder _connectionStringBuilder = null;

        /// <summary>

        /// 当前应用程序名称

        /// </summary>

        string _applicationName;

        #endregion

        #region Private Methods

        /// <summary>

        /// 获取本地网络所有 SQL Server 实例(数据源)

        /// </summary>

        private void GetSqlDataSource()

        {

            // 显示提示信息

            string msg = "正在获取本地网络所有 SQL Server 服务器信息 ...";

            this.toolTip.ToolTipIcon = ToolTipIcon.Info;

            this.toolTip.ToolTipTitle = "请稍候...";

            Point showLocation = new Point(

                this.lblServer.Left + 2,

                this.lblServer.Top + this.lblServer.Height);

            this.toolTip.Show(msg, this, showLocation, 1000);

            // 创建提供了一种枚举本地网络内的所有可用 SQL Server 实例的机制的实例

            SqlDataSourceEnumerator sdsEnum = SqlDataSourceEnumerator.Instance;

            // 调用检索包含有关所有可见 SQL Server 2000 或 SQL Server 2005 实例的信息的 DataTable 的方法

            DataTable serverDt = sdsEnum.GetDataSources();

            // 创建新列以拼接 ServerName 以及 InstanceName 列的内容(以此构建连接字符串的 Server / Data Source 项)

            DataColumn dcDataSource = new DataColumn("SqlDataSourceName", typeof(string));

            // 将新列添加到 DataTable

            serverDt.Columns.Add(dcDataSource);

            // 创建新列以用中文方式显示 IsClustered 列内容

            DataColumn dcIsClustered = new DataColumn("IsClusteredCHS", typeof(string));

            // 将新列添加到 DataTable

            serverDt.Columns.Add(dcIsClustered);

            // 遍历 DataTable 并给新列赋予拼接后的值

            foreach (DataRow dataRow in serverDt.Rows)

            {

                if (!string.IsNullOrEmpty(Convert.ToString(dataRow["InstanceName"])))

                    dataRow["SqlDataSourceName"] = string.Format(@"{0}/{1}",

                        Convert.ToString(dataRow["ServerName"]),

                        Convert.ToString(dataRow["InstanceName"]));

                else

                    dataRow["SqlDataSourceName"] = string.Format(@"{0}",

                        Convert.ToString(dataRow["ServerName"]));

                dataRow["IsClusteredCHS"] =

                    (Convert.ToString(dataRow["IsClustered"]).Trim().ToUpper() == "NO")

                    ? "否" : ((Convert.ToString(dataRow["IsClustered"]).Trim().ToUpper() == "YES")

                    ? "是" : dataRow["IsClustered"]);

            }

            // 如果包含数据行

            if (serverDt.Rows.Count > 0)

            {

                // 创建窗体数据源封装类实例并封装 DataTable

                BindingSource source = new BindingSource();

                source.DataSource = serverDt;

                // 设置 ComboBox 数据源

                this.cboSqlDataSource.DataSource = source;

                this.cboSqlDataSource.DisplayMember = "SqlDataSourceName";

                this.cboSqlDataSource.ValueMember = "SqlDataSourceName";

                // 设置 DataGridView 数据源

                this.dgvServerInfo.DataSource = source;

                // 设置中文列名

                this.dgvServerInfo.Columns["SqlDataSourceName"].HeaderText = "服务器名";

                this.dgvServerInfo.Columns["SqlDataSourceName"].DisplayIndex = 0;

                this.dgvServerInfo.Columns["ServerName"].HeaderText = "服务器物理名称";

                this.dgvServerInfo.Columns["ServerName"].DisplayIndex = 1;

                this.dgvServerInfo.Columns["ServerName"].Visible = false;

                this.dgvServerInfo.Columns["InstanceName"].HeaderText = "实例名";

                this.dgvServerInfo.Columns["InstanceName"].DisplayIndex = 2;

                this.dgvServerInfo.Columns["InstanceName"].Visible = false;

                this.dgvServerInfo.Columns["IsClustered"].HeaderText = "群集信息";

                this.dgvServerInfo.Columns["IsClustered"].DisplayIndex = 3;

                this.dgvServerInfo.Columns["IsClustered"].Visible = false;

                this.dgvServerInfo.Columns["IsClusteredCHS"].HeaderText = "属于群集";

                this.dgvServerInfo.Columns["IsClusteredCHS"].DisplayIndex = 4;

                this.dgvServerInfo.Columns["Version"].HeaderText = "版本";

                this.dgvServerInfo.Columns["Version"].DisplayIndex = 5;

            }

        }

        /// <summary>

        /// 获取当前服务器上所有数据库名称

        /// </summary>

        private void GetDataBaseName()

        {

            // 显示提示信息

            string msg = string.Format("正在获取服务器 [{0}] 上的数据库信息 ...", cboSqlDataSource.Text.Trim());

            this.toolTip.ToolTipIcon = ToolTipIcon.Info;

            this.toolTip.ToolTipTitle = "请稍候...";

            Point showLocation = new Point(

                this.lblServer.Left + 2,

                this.lblServer.Top + this.lblServer.Height);

            this.toolTip.Show(msg, this, showLocation, 1000);

            // 查询服务器上所有数据库的 SQL 查询命令

            string sqlTxt = "Select [Name] From [SysDatabases] Order By [Name]";

            // 保存结果的 DataTable

            DataTable dataBaseDt = new DataTable();

            // 创建连接对象

            using (SqlConnection con = new SqlConnection(GetConnectionString()))

            {

                // 执行查询

                try

                {

                    // 创建适配器对象

                    using (SqlDataAdapter adp = new SqlDataAdapter(sqlTxt, con))

                    {

                        // 将查询结果填充到 DataTable

                        adp.Fill(dataBaseDt);

                    }

                }

                catch { }  // 不弹出异常消息

            }

            // 如果 DataTable 包含数据行

            if (dataBaseDt.Rows.Count > 0)

            {

                // 创建窗体数据绑定对象

                BindingSource source = new BindingSource();

                source.DataSource = dataBaseDt;

                // 将结果绑定到数据库列表

                cboDataBaseName.DataSource = source;

                cboDataBaseName.DisplayMember = "Name";

                cboDataBaseName.ValueMember = "Name";

            }

            else

            {

                // 移除数据库列表

                cboDataBaseName.DataSource = null;

            }

        }

        /// <summary>

        /// 获取连接字符串

        /// </summary>

        private string GetConnectionString()

        {

            // 重新创建连接字符串创建者

            _connectionStringBuilder = new SqlConnectionStringBuilder();

            // 获取服务器名称

            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))

                _connectionStringBuilder.DataSource = cboSqlDataSource.Text.Trim();

            // 获取登录类型

            if (rdoValidateBySQLServer.Checked)

            {

                if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))

                    _connectionStringBuilder.UserID = txtUserName.Text.Trim();

                if (!string.IsNullOrEmpty(txtPassword.Text.Trim()))

                    _connectionStringBuilder.Password = txtPassword.Text.Trim();

            }

            // 获取默认数据库

            if (!string.IsNullOrEmpty(cboDataBaseName.Text.Trim())

                || !string.IsNullOrEmpty(txtDataBaseFilePath.Text.Trim())

                || !string.IsNullOrEmpty(txtLogicalName.Text.Trim()))

            {

                // 如果是附加一个数据库文件

                if (rdoAttachADataBaseFile.Checked)

                {

                    _connectionStringBuilder.AttachDBFilename = txtDataBaseFilePath.Text.Trim();

                    _connectionStringBuilder.InitialCatalog = txtLogicalName.Text.Trim();

                }

                else

                    _connectionStringBuilder.InitialCatalog = cboDataBaseName.Text.Trim();

            }

            // 调整连接字符串

            if (rdoValidateByWindows.Checked)

                _connectionStringBuilder.IntegratedSecurity = true;

            // 返回连接字符串

            return _connectionStringBuilder.ConnectionString;

        }

        #endregion

        #region Public Methods

        /// <summary>

        /// 无参构造

        /// </summary>

        public frmConnectionConfig(string applicationName)

        {

            // 构建设计器控件

            InitializeComponent();

            // 保存当前应用程序名称

            _applicationName = applicationName;

            // 创建连接字符串创建者

            _connectionStringBuilder = new SqlConnectionStringBuilder();

            _connectionStringBuilder.IntegratedSecurity = true;

            //_connectionStringBuilder.ApplicationName = _applicationName;

            //_connectionStringBuilder.AsynchronousProcessing = true;

            //_connectionStringBuilder.Encrypt = true;

        }

        #endregion

        #region Event Handlers

        /// <summary>

        /// 数据源列表下拉事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void cboSqlDataSource_DropDown(object sender, EventArgs e)

        {

            // 如果数据源列表条目为空

            if (cboSqlDataSource.Items.Count == 0)

            {

                // 获取本地网络所有 SQL Server 实例(数据源)

                GetSqlDataSource();

            }

        }

        /// <summary>

        /// 数据库列表获得焦点事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void cboDataBaseName_Enter(object sender, EventArgs e)

        {

            // 获取当前服务器上所有数据库名称

            GetDataBaseName();

        }

        /// <summary>

        /// 选择选项卡页事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void tcServerInfo_Selecting(object sender, TabControlCancelEventArgs e)

        {

            // 如果数据源列表条目为空

            if (cboSqlDataSource.Items.Count == 0 && e.TabPage == tpServerInfo)

            {

                // 获取本地网络所有 SQL Server 实例(数据源)

                GetSqlDataSource();

            }

        }

        /// <summary>

        /// [刷新]按钮点击事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnRefresh_Click(object sender, EventArgs e)

        {

            // 获取本地网络所有 SQL Server 实例(数据源)

            GetSqlDataSource();

        }

        /// <summary>

        /// [使用 SQL Server 身份验证]单选按钮 Checked 属性更改事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void rdoValidateBySQLServer_CheckedChanged(object sender, EventArgs e)

        {

            if (rdoValidateBySQLServer.Checked)

            {

                _connectionStringBuilder.IntegratedSecurity = false;

                lblUserName.Enabled = true;

                txtUserName.Enabled = true;

                lblPassword.Enabled = true;

                txtPassword.Enabled = true;

                if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))

                    gbConnectToADataBase.Enabled = true;

                else

                    gbConnectToADataBase.Enabled = false;

            }

            else

            {

                _connectionStringBuilder.IntegratedSecurity = true;

                lblUserName.Enabled = false;

                txtUserName.Enabled = false;

                lblPassword.Enabled = false;

                txtPassword.Enabled = false;

                if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))

                    gbConnectToADataBase.Enabled = true;

                else

                    gbConnectToADataBase.Enabled = false;

            }

        }

        /// <summary>

        /// [附加一个数据库文件]单选按钮 Checked 属性更改事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void rdoAttachADataBaseFile_CheckedChanged(object sender, EventArgs e)

        {

            if (rdoAttachADataBaseFile.Checked)

            {

                cboDataBaseName.Enabled = false;

                txtDataBaseFilePath.Enabled = true;

                btnBrowse.Enabled = true;

                lblLogicalName.Enabled = true;

                txtLogicalName.Enabled = true;

            }

            else

            {

                cboDataBaseName.Enabled = true;

                txtDataBaseFilePath.Enabled = false;

                btnBrowse.Enabled = false;

                lblLogicalName.Enabled = false;

                txtLogicalName.Enabled = false;

            }

        }



        /// <summary>

        /// 数据源列表 Text 值更改事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void cboSqlDataSource_TextChanged(object sender, EventArgs e)

        {

            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim())

                && _connectionStringBuilder.IntegratedSecurity == true

                || !string.IsNullOrEmpty(txtUserName.Text.Trim())

                && _connectionStringBuilder.IntegratedSecurity == false)

            {

                gbConnectToADataBase.Enabled = true;

                btnOK.Enabled = true;

            }

            else

            {

                gbConnectToADataBase.Enabled = false;

                btnOK.Enabled = false;

            }

        }

        /// <summary>

        /// [用户名]文本框文本更改事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void txtUserName_TextChanged(object sender, EventArgs e)

        {

            if (!string.IsNullOrEmpty(txtUserName.Text.Trim()))

                gbConnectToADataBase.Enabled = true;

            else

                gbConnectToADataBase.Enabled = false;

        }

        /// <summary>

        /// [测试连接]按钮点击事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnTestConnection_Click(object sender, EventArgs e)

        {

            if (!string.IsNullOrEmpty(cboSqlDataSource.Text.Trim()))

            {

                // 创建连接对象

                using (SqlConnection con = new SqlConnection(GetConnectionString()))

                {

                    try

                    {

                        // 打开数据库连接

                        con.Open();

                        // 给出用户提示

                        MessageBox.Show(

                            "测试连接成功。",

                            this.Text,

                            MessageBoxButtons.OK,

                            MessageBoxIcon.Information);

                    }

                    catch (Exception ex)

                    {

                        MessageBox.Show(

                        ex.Message,

                        this.Text,

                        MessageBoxButtons.OK,

                        MessageBoxIcon.Error);

                    }

                    finally

                    {

                        // 关闭数据库连接

                        con.Close();

                    }

                }

            }

            else

            {

                MessageBox.Show(

                    "无法测试此连接，因为没有指定服务器名称。",

                    this.Text,

                    MessageBoxButtons.OK,

                    MessageBoxIcon.Error);

            }

        }

        /// <summary>

        /// [确定]按钮点击事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnOK_Click(object sender, EventArgs e)

        {

            try

            {

                // 创建应用程序配置文件

                string configFilePath = string.Format(@"{0}.config", Application.ExecutablePath);

                Configuration configuration = null;

                if (!File.Exists(configFilePath))

                {

                    FileStream fs = null;

                    try

                    {

                        fs = new FileStream(configFilePath, FileMode.CreateNew);

                        fs.SetLength(0);

                    }

                    catch { }   // 不弹出异常提示

                    finally

                    {

                        fs.Close();

                    }

                }

                configuration = ConfigurationManager.OpenExeConfiguration(configFilePath);

                // configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

                // 遍历检验 ConnectionType 项是否存在

                bool appSettingsExist = false;

                foreach (KeyValueConfigurationElement element in configuration.AppSettings.Settings)

                {

                    // 如果存在

                    if (element.Key == "ConnectionType")

                    {

                        // 标识存在

                        appSettingsExist = true;

                        break;

                    }

                }

                // 如果存在

                if (appSettingsExist)

                    // 修改配置节点

                    configuration.AppSettings.Settings["ConnectionType"].Value = "SQLSERVER";

                else

                    // 添加配置节点

                    configuration.AppSettings.Settings.Add("ConnectionType", "SQLSERVER");

                // 遍历检验 SQLSERVER 项是否存在

                bool connectionStringExist = false;

                foreach (ConnectionStringSettings setting in configuration.ConnectionStrings.ConnectionStrings)

                {

                    // 如果存在

                    if (setting.Name == "SQLSERVER")

                    {

                        // 标识存在

                        connectionStringExist = true;

                    }

                }

                // 如果存在

                if (connectionStringExist)

                {

                    // 修改配置节点

                    configuration.ConnectionStrings.ConnectionStrings["SQLSERVER"].ConnectionString =

                        GetConnectionString();

                    configuration.ConnectionStrings.ConnectionStrings["SQLSERVER"].ProviderName =

                        "System.Data.SqlClient";

                }

                else

                {

                    // 添加连接字符串节点

                    configuration.ConnectionStrings.ConnectionStrings.Add(

                        new ConnectionStringSettings(

                        "SQLSERVER",

                        GetConnectionString(),

                        "System.Data.SqlClient"));

                }

                // 保存配置

                configuration.SaveAs(

                    string.Format(@"{0}.config", Application.ExecutablePath.Replace(".EXE", ".exe")),

                    ConfigurationSaveMode.Minimal);

                // 关闭窗体

                this.Close();

            }

            catch (Exception ex)

            {

                MessageBox.Show(

                    string.Format("保存数据库连接配置时发生以下错误：/r/n/r/n{0}", ex.Message),

                    this.Text,

                    MessageBoxButtons.OK,

                    MessageBoxIcon.Error);

            }

        }

        /// <summary>

        /// [取消]按钮点击事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnCancel_Click(object sender, EventArgs e)

        {

            this.Close();

        }

        /// <summary>

        /// [浏览]按钮点击事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnBrowse_Click(object sender, EventArgs e)

        {

            OpenFileDialog ofDlg = new OpenFileDialog();

            ofDlg.Title = "选择 SQL Server 数据库文件";

            ofDlg.Filter = "Microsoft SQL Server 数据库(*.mdf)|*.mdf|所有文件(*.*)|*.*";

            ofDlg.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);

            DialogResult result = ofDlg.ShowDialog(this);

            if (result == DialogResult.OK)

                txtDataBaseFilePath.Text = ofDlg.FileName;

        }

        /// <summary>

        /// [获取连接字符串]按钮点击事件

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        private void btnGetConnectionString_Click(object sender, EventArgs e)

        {

            this.txtConnectionString.Text = GetConnectionString();

        }

        #endregion

    }

}
设计器源码：
namespace CodingMouse.CMCSharpSDK.UI.Forms

{

    partial class frmConnectionConfig

    {

        /// <summary>

        /// 必需的设计器变量。

        /// </summary>

        private System.ComponentModel.IContainer components = null;

        /// <summary>

        /// 清理所有正在使用的资源。

        /// </summary>

        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>

        protected override void Dispose(bool disposing)

        {

            if (disposing && (components != null))

            {

                components.Dispose();

            }

            base.Dispose(disposing);

        }

        #region Windows 窗体设计器生成的代码

        /// <summary>

        /// 设计器支持所需的方法 - 不要

        /// 使用代码编辑器修改此方法的内容。

        /// </summary>

        private void InitializeComponent()

        {

            this.components = new System.ComponentModel.Container();

            this.cboSqlDataSource = new System.Windows.Forms.ComboBox();

            this.tcServerInfo = new System.Windows.Forms.TabControl();

            this.tpConnectionInfo = new System.Windows.Forms.TabPage();

            this.gbConnectToADataBase = new System.Windows.Forms.GroupBox();

            this.txtLogicalName = new System.Windows.Forms.TextBox();

            this.lblLogicalName = new System.Windows.Forms.Label();

            this.btnBrowse = new System.Windows.Forms.Button();

            this.cboDataBaseName = new System.Windows.Forms.ComboBox();

            this.txtDataBaseFilePath = new System.Windows.Forms.TextBox();

            this.rdoAttachADataBaseFile = new System.Windows.Forms.RadioButton();

            this.rdoSelectOrEnterADataBaseName = new System.Windows.Forms.RadioButton();

            this.gbLogOnToTheServer = new System.Windows.Forms.GroupBox();

            this.txtPassword = new System.Windows.Forms.TextBox();

            this.txtUserName = new System.Windows.Forms.TextBox();

            this.lblPassword = new System.Windows.Forms.Label();

            this.lblUserName = new System.Windows.Forms.Label();

            this.rdoValidateBySQLServer = new System.Windows.Forms.RadioButton();

            this.rdoValidateByWindows = new System.Windows.Forms.RadioButton();

            this.tpServerInfo = new System.Windows.Forms.TabPage();

            this.dgvServerInfo = new System.Windows.Forms.DataGridView();

            this.toolTip = new System.Windows.Forms.ToolTip(this.components);

            this.btnRefresh = new System.Windows.Forms.Button();

            this.lblServer = new System.Windows.Forms.Label();

            this.btnGetConnectionString = new System.Windows.Forms.Button();

            this.btnCancel = new System.Windows.Forms.Button();

            this.btnOK = new System.Windows.Forms.Button();

            this.btnTestConnection = new System.Windows.Forms.Button();

            this.lblSplit = new System.Windows.Forms.Label();

            this.txtConnectionString = new System.Windows.Forms.TextBox();

            this.tcServerInfo.SuspendLayout();

            this.tpConnectionInfo.SuspendLayout();

            this.gbConnectToADataBase.SuspendLayout();

            this.gbLogOnToTheServer.SuspendLayout();

            this.tpServerInfo.SuspendLayout();

            ((System.ComponentModel.ISupportInitialize)(this.dgvServerInfo)).BeginInit();

            this.SuspendLayout();

            //

            // cboSqlDataSource

            //

            this.cboSqlDataSource.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.cboSqlDataSource.FormattingEnabled = true;

            this.cboSqlDataSource.Location = new System.Drawing.Point(12, 24);

            this.cboSqlDataSource.Name = "cboSqlDataSource";

            this.cboSqlDataSource.Size = new System.Drawing.Size(269, 20);

            this.cboSqlDataSource.TabIndex = 1;

            this.cboSqlDataSource.Leave += new System.EventHandler(this.cboSqlDataSource_Leave);

            this.cboSqlDataSource.TextChanged += new System.EventHandler(this.cboSqlDataSource_TextChanged);

            this.cboSqlDataSource.DropDown += new System.EventHandler(this.cboSqlDataSource_DropDown);

            //

            // tcServerInfo

            //

            this.tcServerInfo.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.tcServerInfo.Controls.Add(this.tpConnectionInfo);

            this.tcServerInfo.Controls.Add(this.tpServerInfo);

            this.tcServerInfo.HotTrack = true;

            this.tcServerInfo.Location = new System.Drawing.Point(12, 50);

            this.tcServerInfo.Name = "tcServerInfo";

            this.tcServerInfo.SelectedIndex = 0;

            this.tcServerInfo.ShowToolTips = true;

            this.tcServerInfo.Size = new System.Drawing.Size(350, 304);

            this.tcServerInfo.TabIndex = 3;

            this.tcServerInfo.Selecting += new System.Windows.Forms.TabControlCancelEventHandler(this.tcServerInfo_Selecting);

            //

            // tpConnectionInfo

            //

            this.tpConnectionInfo.Controls.Add(this.gbConnectToADataBase);

            this.tpConnectionInfo.Controls.Add(this.gbLogOnToTheServer);

            this.tpConnectionInfo.Location = new System.Drawing.Point(4, 21);

            this.tpConnectionInfo.Name = "tpConnectionInfo";

            this.tpConnectionInfo.Padding = new System.Windows.Forms.Padding(3);

            this.tpConnectionInfo.Size = new System.Drawing.Size(342, 279);

            this.tpConnectionInfo.TabIndex = 0;

            this.tpConnectionInfo.Text = "数据库连接信息";

            this.tpConnectionInfo.UseVisualStyleBackColor = true;

            //

            // gbConnectToADataBase

            //

            this.gbConnectToADataBase.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.gbConnectToADataBase.Controls.Add(this.txtLogicalName);

            this.gbConnectToADataBase.Controls.Add(this.lblLogicalName);

            this.gbConnectToADataBase.Controls.Add(this.btnBrowse);

            this.gbConnectToADataBase.Controls.Add(this.cboDataBaseName);

            this.gbConnectToADataBase.Controls.Add(this.txtDataBaseFilePath);

            this.gbConnectToADataBase.Controls.Add(this.rdoAttachADataBaseFile);

            this.gbConnectToADataBase.Controls.Add(this.rdoSelectOrEnterADataBaseName);

            this.gbConnectToADataBase.Enabled = false;

            this.gbConnectToADataBase.Location = new System.Drawing.Point(6, 129);

            this.gbConnectToADataBase.Name = "gbConnectToADataBase";

            this.gbConnectToADataBase.Size = new System.Drawing.Size(330, 144);

            this.gbConnectToADataBase.TabIndex = 1;

            this.gbConnectToADataBase.TabStop = false;

            this.gbConnectToADataBase.Text = "连接到一个数据库";

            //

            // txtLogicalName

            //

            this.txtLogicalName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.txtLogicalName.Enabled = false;

            this.txtLogicalName.Location = new System.Drawing.Point(6, 117);

            this.txtLogicalName.Name = "txtLogicalName";

            this.txtLogicalName.Size = new System.Drawing.Size(318, 21);

            this.txtLogicalName.TabIndex = 6;

            //

            // lblLogicalName

            //

            this.lblLogicalName.AutoSize = true;

            this.lblLogicalName.Enabled = false;

            this.lblLogicalName.Location = new System.Drawing.Point(4, 102);

            this.lblLogicalName.Name = "lblLogicalName";

            this.lblLogicalName.Size = new System.Drawing.Size(65, 12);

            this.lblLogicalName.TabIndex = 5;

            this.lblLogicalName.Text = "逻辑名(&L):";

            //

            // btnBrowse

            //

            this.btnBrowse.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));

            this.btnBrowse.Enabled = false;

            this.btnBrowse.Location = new System.Drawing.Point(244, 78);

            this.btnBrowse.Name = "btnBrowse";

            this.btnBrowse.Size = new System.Drawing.Size(80, 21);

            this.btnBrowse.TabIndex = 4;

            this.btnBrowse.Text = "浏览(&B)...";

            this.btnBrowse.UseVisualStyleBackColor = true;

            this.btnBrowse.Click += new System.EventHandler(this.btnBrowse_Click);

            //

            // cboDataBaseName

            //

            this.cboDataBaseName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.cboDataBaseName.FormattingEnabled = true;

            this.cboDataBaseName.Location = new System.Drawing.Point(6, 36);

            this.cboDataBaseName.Name = "cboDataBaseName";

            this.cboDataBaseName.Size = new System.Drawing.Size(318, 20);

            this.cboDataBaseName.TabIndex = 1;

            this.cboDataBaseName.Enter += new System.EventHandler(this.cboDataBaseName_Enter);

            //

            // txtDataBaseFilePath

            //

            this.txtDataBaseFilePath.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.txtDataBaseFilePath.Enabled = false;

            this.txtDataBaseFilePath.Location = new System.Drawing.Point(6, 78);

            this.txtDataBaseFilePath.Name = "txtDataBaseFilePath";

            this.txtDataBaseFilePath.Size = new System.Drawing.Size(232, 21);

            this.txtDataBaseFilePath.TabIndex = 3;

            //

            // rdoAttachADataBaseFile

            //

            this.rdoAttachADataBaseFile.AutoSize = true;

            this.rdoAttachADataBaseFile.Location = new System.Drawing.Point(6, 62);

            this.rdoAttachADataBaseFile.Name = "rdoAttachADataBaseFile";

            this.rdoAttachADataBaseFile.Size = new System.Drawing.Size(155, 16);

            this.rdoAttachADataBaseFile.TabIndex = 2;

            this.rdoAttachADataBaseFile.Text = "附加一个数据库文件(&H):";

            this.rdoAttachADataBaseFile.UseVisualStyleBackColor = true;

            this.rdoAttachADataBaseFile.CheckedChanged += new System.EventHandler(this.rdoAttachADataBaseFile_CheckedChanged);

            //

            // rdoSelectOrEnterADataBaseName

            //

            this.rdoSelectOrEnterADataBaseName.AutoSize = true;

            this.rdoSelectOrEnterADataBaseName.Checked = true;

            this.rdoSelectOrEnterADataBaseName.Location = new System.Drawing.Point(6, 20);

            this.rdoSelectOrEnterADataBaseName.Name = "rdoSelectOrEnterADataBaseName";

            this.rdoSelectOrEnterADataBaseName.Size = new System.Drawing.Size(179, 16);

            this.rdoSelectOrEnterADataBaseName.TabIndex = 0;

            this.rdoSelectOrEnterADataBaseName.TabStop = true;

            this.rdoSelectOrEnterADataBaseName.Text = "选择或输入一个数据库名(&D):";

            this.rdoSelectOrEnterADataBaseName.UseVisualStyleBackColor = true;

            //

            // gbLogOnToTheServer

            //

            this.gbLogOnToTheServer.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.gbLogOnToTheServer.Controls.Add(this.txtPassword);

            this.gbLogOnToTheServer.Controls.Add(this.txtUserName);

            this.gbLogOnToTheServer.Controls.Add(this.lblPassword);

            this.gbLogOnToTheServer.Controls.Add(this.lblUserName);

            this.gbLogOnToTheServer.Controls.Add(this.rdoValidateBySQLServer);

            this.gbLogOnToTheServer.Controls.Add(this.rdoValidateByWindows);

            this.gbLogOnToTheServer.Location = new System.Drawing.Point(6, 6);

            this.gbLogOnToTheServer.Name = "gbLogOnToTheServer";

            this.gbLogOnToTheServer.Size = new System.Drawing.Size(330, 117);

            this.gbLogOnToTheServer.TabIndex = 0;

            this.gbLogOnToTheServer.TabStop = false;

            this.gbLogOnToTheServer.Text = "登录到服务器";

            //

            // txtPassword

            //

            this.txtPassword.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.txtPassword.Enabled = false;

            this.txtPassword.Location = new System.Drawing.Point(93, 88);

            this.txtPassword.Name = "txtPassword";

            this.txtPassword.PasswordChar = '*';

            this.txtPassword.Size = new System.Drawing.Size(231, 21);

            this.txtPassword.TabIndex = 5;

            this.txtPassword.TextChanged += new System.EventHandler(this.txtPassword_TextChanged);

            //

            // txtUserName

            //

            this.txtUserName.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.txtUserName.Enabled = false;

            this.txtUserName.Location = new System.Drawing.Point(93, 61);

            this.txtUserName.Name = "txtUserName";

            this.txtUserName.Size = new System.Drawing.Size(231, 21);

            this.txtUserName.TabIndex = 3;

            this.txtUserName.TextChanged += new System.EventHandler(this.txtUserName_TextChanged);

            //

            // lblPassword

            //

            this.lblPassword.AutoSize = true;

            this.lblPassword.Enabled = false;

            this.lblPassword.Location = new System.Drawing.Point(22, 91);

            this.lblPassword.Name = "lblPassword";

            this.lblPassword.Size = new System.Drawing.Size(65, 12);

            this.lblPassword.TabIndex = 4;

            this.lblPassword.Text = "密  码(&P):";

            //

            // lblUserName

            //

            this.lblUserName.AutoSize = true;

            this.lblUserName.Enabled = false;

            this.lblUserName.Location = new System.Drawing.Point(22, 64);

            this.lblUserName.Name = "lblUserName";

            this.lblUserName.Size = new System.Drawing.Size(65, 12);

            this.lblUserName.TabIndex = 2;

            this.lblUserName.Text = "用户名(&U):";

            //

            // rdoValidateBySQLServer

            //

            this.rdoValidateBySQLServer.AutoSize = true;

            this.rdoValidateBySQLServer.Location = new System.Drawing.Point(6, 42);

            this.rdoValidateBySQLServer.Name = "rdoValidateBySQLServer";

            this.rdoValidateBySQLServer.Size = new System.Drawing.Size(185, 16);

            this.rdoValidateBySQLServer.TabIndex = 1;

            this.rdoValidateBySQLServer.Text = "使用 SQL Server 身份验证(&Q)";

            this.rdoValidateBySQLServer.UseVisualStyleBackColor = true;

            this.rdoValidateBySQLServer.CheckedChanged += new System.EventHandler(this.rdoValidateBySQLServer_CheckedChanged);

            //

            // rdoValidateByWindows

            //

            this.rdoValidateByWindows.AutoSize = true;

            this.rdoValidateByWindows.Checked = true;

            this.rdoValidateByWindows.Location = new System.Drawing.Point(6, 20);

            this.rdoValidateByWindows.Name = "rdoValidateByWindows";

            this.rdoValidateByWindows.Size = new System.Drawing.Size(167, 16);

            this.rdoValidateByWindows.TabIndex = 0;

            this.rdoValidateByWindows.TabStop = true;

            this.rdoValidateByWindows.Text = "使用 Windows 身份验证(&W)";

            this.rdoValidateByWindows.UseVisualStyleBackColor = true;

            //

            // tpServerInfo

            //

            this.tpServerInfo.Controls.Add(this.dgvServerInfo);

            this.tpServerInfo.Location = new System.Drawing.Point(4, 21);

            this.tpServerInfo.Name = "tpServerInfo";

            this.tpServerInfo.Padding = new System.Windows.Forms.Padding(3);

            this.tpServerInfo.Size = new System.Drawing.Size(342, 279);

            this.tpServerInfo.TabIndex = 1;

            this.tpServerInfo.Text = "服务器详细信息";

            this.tpServerInfo.UseVisualStyleBackColor = true;

            //

            // dgvServerInfo

            //

            this.dgvServerInfo.AllowUserToAddRows = false;

            this.dgvServerInfo.AllowUserToDeleteRows = false;

            this.dgvServerInfo.AllowUserToResizeRows = false;

            this.dgvServerInfo.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill;

            this.dgvServerInfo.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;

            this.dgvServerInfo.Dock = System.Windows.Forms.DockStyle.Fill;

            this.dgvServerInfo.Location = new System.Drawing.Point(3, 3);

            this.dgvServerInfo.MultiSelect = false;

            this.dgvServerInfo.Name = "dgvServerInfo";

            this.dgvServerInfo.ReadOnly = true;

            this.dgvServerInfo.RowHeadersVisible = false;

            this.dgvServerInfo.RowTemplate.Height = 23;

            this.dgvServerInfo.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;

            this.dgvServerInfo.Size = new System.Drawing.Size(336, 273);

            this.dgvServerInfo.TabIndex = 0;

            //

            // toolTip

            //

            this.toolTip.ShowAlways = true;

            //

            // btnRefresh

            //

            this.btnRefresh.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));

            this.btnRefresh.Location = new System.Drawing.Point(287, 23);

            this.btnRefresh.Name = "btnRefresh";

            this.btnRefresh.Size = new System.Drawing.Size(75, 21);

            this.btnRefresh.TabIndex = 2;

            this.btnRefresh.Text = "刷新(&R)";

            this.btnRefresh.UseVisualStyleBackColor = true;

            this.btnRefresh.Click += new System.EventHandler(this.btnRefresh_Click);

            //

            // lblServer

            //

            this.lblServer.AutoSize = true;

            this.lblServer.Location = new System.Drawing.Point(10, 9);

            this.lblServer.Name = "lblServer";

            this.lblServer.Size = new System.Drawing.Size(77, 12);

            this.lblServer.TabIndex = 0;

            this.lblServer.Text = "服务器名(&E):";

            //

            // btnGetConnectionString

            //

            this.btnGetConnectionString.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));

            this.btnGetConnectionString.Enabled = false;

            this.btnGetConnectionString.Location = new System.Drawing.Point(242, 360);

            this.btnGetConnectionString.Name = "btnGetConnectionString";

            this.btnGetConnectionString.Size = new System.Drawing.Size(120, 21);

            this.btnGetConnectionString.TabIndex = 5;

            this.btnGetConnectionString.Text = "获取连接字符串(&G)";

            this.btnGetConnectionString.UseVisualStyleBackColor = true;

            this.btnGetConnectionString.Click += new System.EventHandler(this.btnGetConnectionString_Click);

            //

            // btnCancel

            //

            this.btnCancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));

            this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;

            this.btnCancel.Location = new System.Drawing.Point(287, 395);

            this.btnCancel.Name = "btnCancel";

            this.btnCancel.Size = new System.Drawing.Size(75, 21);

            this.btnCancel.TabIndex = 9;

            this.btnCancel.Text = "取消";

            this.btnCancel.UseVisualStyleBackColor = true;

            this.btnCancel.Click += new System.EventHandler(this.btnCancel_Click);

            //

            // btnOK

            //

            this.btnOK.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));

            this.btnOK.DialogResult = System.Windows.Forms.DialogResult.OK;

            this.btnOK.Enabled = false;

            this.btnOK.Location = new System.Drawing.Point(206, 395);

            this.btnOK.Name = "btnOK";

            this.btnOK.Size = new System.Drawing.Size(75, 21);

            this.btnOK.TabIndex = 8;

            this.btnOK.Text = "确定";

            this.btnOK.UseVisualStyleBackColor = true;

            this.btnOK.Click += new System.EventHandler(this.btnOK_Click);

            //

            // btnTestConnection

            //

            this.btnTestConnection.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));

            this.btnTestConnection.Location = new System.Drawing.Point(12, 395);

            this.btnTestConnection.Name = "btnTestConnection";

            this.btnTestConnection.Size = new System.Drawing.Size(100, 21);

            this.btnTestConnection.TabIndex = 7;

            this.btnTestConnection.Text = "测试连接(&T)";

            this.btnTestConnection.UseVisualStyleBackColor = true;

            this.btnTestConnection.Click += new System.EventHandler(this.btnTestConnection_Click);

            //

            // lblSplit

            //

            this.lblSplit.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.lblSplit.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;

            this.lblSplit.Location = new System.Drawing.Point(12, 387);

            this.lblSplit.Name = "lblSplit";

            this.lblSplit.Size = new System.Drawing.Size(350, 2);

            this.lblSplit.TabIndex = 6;

            //

            // txtConnectionString

            //

            this.txtConnectionString.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)

                        | System.Windows.Forms.AnchorStyles.Right)));

            this.txtConnectionString.Location = new System.Drawing.Point(12, 360);

            this.txtConnectionString.Name = "txtConnectionString";

            this.txtConnectionString.ReadOnly = true;

            this.txtConnectionString.Size = new System.Drawing.Size(224, 21);

            this.txtConnectionString.TabIndex = 4;

            //

            // frmConnectionConfig

            //

            this.AcceptButton = this.btnOK;

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.CancelButton = this.btnCancel;

            this.ClientSize = new System.Drawing.Size(374, 428);

            this.Controls.Add(this.txtConnectionString);

            this.Controls.Add(this.lblSplit);

            this.Controls.Add(this.btnTestConnection);

            this.Controls.Add(this.btnOK);

            this.Controls.Add(this.btnCancel);

            this.Controls.Add(this.btnGetConnectionString);

            this.Controls.Add(this.btnRefresh);

            this.Controls.Add(this.lblServer);

            this.Controls.Add(this.tcServerInfo);

            this.Controls.Add(this.cboSqlDataSource);

            this.HelpButton = true;

            this.MaximizeBox = false;

            this.MinimizeBox = false;

            this.MinimumSize = new System.Drawing.Size(382, 455);

            this.Name = "frmConnectionConfig";

            this.ShowIcon = false;

            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Show;

            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;

            this.Text = "数据库连接配置";

            this.tcServerInfo.ResumeLayout(false);

            this.tpConnectionInfo.ResumeLayout(false);

            this.gbConnectToADataBase.ResumeLayout(false);

            this.gbConnectToADataBase.PerformLayout();

            this.gbLogOnToTheServer.ResumeLayout(false);

            this.gbLogOnToTheServer.PerformLayout();

            this.tpServerInfo.ResumeLayout(false);

            ((System.ComponentModel.ISupportInitialize)(this.dgvServerInfo)).EndInit();

            this.ResumeLayout(false);

            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.ComboBox cboSqlDataSource;

        private System.Windows.Forms.TabControl tcServerInfo;

        private System.Windows.Forms.TabPage tpConnectionInfo;

        private System.Windows.Forms.TabPage tpServerInfo;

        private System.Windows.Forms.DataGridView dgvServerInfo;

        private System.Windows.Forms.ToolTip toolTip;

        private System.Windows.Forms.Label lblServer;

        private System.Windows.Forms.Button btnRefresh;

        private System.Windows.Forms.GroupBox gbLogOnToTheServer;

        private System.Windows.Forms.TextBox txtPassword;

        private System.Windows.Forms.TextBox txtUserName;

        private System.Windows.Forms.Label lblPassword;

        private System.Windows.Forms.Label lblUserName;

        private System.Windows.Forms.RadioButton rdoValidateBySQLServer;

        private System.Windows.Forms.RadioButton rdoValidateByWindows;

        private System.Windows.Forms.GroupBox gbConnectToADataBase;

        private System.Windows.Forms.RadioButton rdoAttachADataBaseFile;

        private System.Windows.Forms.RadioButton rdoSelectOrEnterADataBaseName;

        private System.Windows.Forms.Button btnGetConnectionString;

        private System.Windows.Forms.Button btnCancel;

        private System.Windows.Forms.Button btnOK;

        private System.Windows.Forms.Button btnTestConnection;

        private System.Windows.Forms.ComboBox cboDataBaseName;

        private System.Windows.Forms.TextBox txtDataBaseFilePath;

        private System.Windows.Forms.Button btnBrowse;

        private System.Windows.Forms.TextBox txtLogicalName;

        private System.Windows.Forms.Label lblLogicalName;

        private System.Windows.Forms.Label lblSplit;

        private System.Windows.Forms.TextBox txtConnectionString;

    }

}

上面是自己写的界面，也可以自己去调用系统的界面

一、添加引用
C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\Microsoft.Data.ConnectionUI.Dialog.dll

二、引入名称空间

C# code

using Microsoft.Data.ConnectionUI;

三、代码

C# code

DataConnectionDialog dlg =new DataConnectionDialog(); dlg.DataSources.Add(DataSource.SqlDataSource); dlg.SelectedDataProvider = DataProvider.SqlDataProvider; DataConnectionDialog.Show(dlg, this);

比如说放在一个按钮的Click事件里

C# code

privatevoid button1_Click(object sender, EventArgs e) { DataConnectionDialog dlg =new DataConnectionDialog(); dlg.DataSources.Add(DataSource.SqlDataSource); dlg.SelectedDataProvider = DataProvider.SqlDataProvider; DataConnectionDialog.Show(dlg, this); }

四、运行
界面出来了，是不是相当的专业!

DataConnectionDialog 还有很多属性，配置这些属性可以改变窗口外观，满足不同需求。
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原文地址：https://www.cnblogs.com/lvfeilong/p/khhjhjhgjhgjhj.html