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  • WinForm里实现选择一个DataGridView指定行后同步到另外一个DataGridView中(基于Sql Server数据库)并批量插入数据库

    using System;
    using System.Data;
    using System.Data.SqlClient;
    using System.Windows.Forms;
    using ConfigurationManagerSqlServerVersion.Helpers;
    using MessageBoxer;
    
    namespace ConfigurationManagerSqlServerVersion
    {
        /// <summary>
        ///     WinForm里实现选择一个DataGridView指定行后同步到另外一个DataGridView中(基于Sql Server数据库)并批量插入数据
        ///     https://www.cnblogs.com/LifeDecidesHappiness/p/15457433.html
        ///     LDH @   2021-10-25
        /// </summary>
        public partial class FrmMain : Form
        {
            /// <summary>
            ///     数据库连接字符串
            /// </summary>
            public string ConnectionString = "Data Source =.; Initial Catalog = TestDB; User ID = sa; Password=123456";
    
            public FrmMain()
            {
                InitializeComponent();
                dgvBottom.CellValidating += DgvBottom_CellValidating;
                dgvBottom.CellEndEdit += DgvBottom_CellEndEdit;
    
                // 给DataGridView添加右键菜单
                dgvBottom.CellMouseDown += DgvBottom_CellMouseDown;
            }
    
            /// <summary>
            ///     在DataGridView控件上右键鼠标,弹出右键菜单
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void DgvBottom_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
            {
                if (e.Button == MouseButtons.Right)
                    if (e.RowIndex >= 0)
                    {
                        // 若行已是选中状态就不再进行设置
                        if (dgvBottom.Rows[e.RowIndex].Selected == false)
                        {
                            dgvBottom.ClearSelection();
                            dgvBottom.Rows[e.RowIndex].Selected = true;
                        }
    
                        //弹出操作菜单
                        contextMenuStrip1.Show(MousePosition.X, MousePosition.Y);
                    }
            }
    
            /// <summary>
            ///     单元格结束编辑事件
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void DgvBottom_CellEndEdit(object sender, DataGridViewCellEventArgs e)
            {
                // Clear the row error in case the user presses ESC.   
                dgvBottom.Rows[e.RowIndex].ErrorText = string.Empty;
    
                //var dt = (DataTable)dgvBottom.DataSource;
            }
    
            /// <summary>
            ///     验证不能输入为空
            ///     https://vimsky.com/examples/detail/csharp-event-system.windows.forms.datagridview.cellendedit.html
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void DgvBottom_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
            {
                var headerText = dgvBottom.Columns[e.ColumnIndex].HeaderText;
    
                // Abort validation if cell is not in the Type column.
                if (!headerText.Equals("Type")) return;
    
                // Confirm that the cell is not empty.
                if (string.IsNullOrEmpty(e.FormattedValue.ToString()))
                {
                    dgvBottom.Rows[e.RowIndex].ErrorText = "Type Name must not be empty";
                    e.Cancel = true;
                }
            }
    
            private void FrmMain_Load(object sender, EventArgs e)
            {
                BindData();
            }
    
            private void BindData()
            {
                dgvTop.DataSource = null;
                dgvTop.DataSource = GetDataSource();
    
                SetStyleForDataGridView(dgvTop, false);
            }
    
            /// <summary>
            ///     设置DataGridView样式
            /// </summary>
            /// <param name="dgv">DataGridView</param>
            /// <param name="canEditCell">是否可以编辑单元格</param>
            private void SetStyleForDataGridView(DataGridView dgv, bool canEditCell)
            {
                dgv.AllowUserToAddRows = false; // 不向用户显示添加行的选项
                dgv.AllowUserToResizeRows = false; // 禁止用户改变DataGridView所有行的行高  
                dgv.AutoGenerateColumns = false; // 禁止自动生成列
                dgv.SelectionMode = DataGridViewSelectionMode.FullRowSelect; //  整行选取
                dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill; // 使数据区自动充满整个面板
                dgv.EditMode =
                    canEditCell ? DataGridViewEditMode.EditOnEnter : DataGridViewEditMode.EditProgrammatically; // 是否可以编辑单元格
    
                dgv.ClearSelection(); // 取消选中状态
            }
    
            private DataTable GetDataSource()
            {
                var sql = "SELECT TOP 100 Name,Type,Year,Sponsor,Remark FROM dbo.CollegeInfo";
                var dt = SqlHelper.ExecuteDataset(ConnectionString, CommandType.Text, sql).Tables[0];
                return dt;
            }
    
    
            private void dgvTop_SelectionChanged(object sender, EventArgs e)
            {
                dgvBottom.DataSource = null;
    
                var totalDt = (DataTable)dgvTop.DataSource;
    
                // 选中Rows放在集合中
                var rowColls = dgvTop.SelectedRows;
    
                // 克隆一个表结构
                var selectedDt = totalDt.Clone();
                for (var i = 0; i < rowColls.Count; i++)
                {
                    var dr = (rowColls[i].DataBoundItem as DataRowView)?.Row;
                    selectedDt.ImportRow(dr);
                }
    
                dgvBottom.DataSource = selectedDt;
    
                SetStyleForDataGridView(dgvBottom, true);
            }
    
            private void FrmMain_FormClosing(object sender, FormClosingEventArgs e)
            {
                var dr = ShowMessage.GetUserYesOrNo("您确定现在退出系统吗?", "温馨提示");
                if (dr == DialogResult.Yes)
                    Environment.Exit(0);
                else
                    e.Cancel = true;
            }
    
            /// <summary>
            ///     新增选中行记录到数据库
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void tsmiInsert_Click(object sender, EventArgs e)
            {
                var dt = (DataTable)dgvBottom.DataSource;
                var result = BatchInsertIntoDatabase(dt);
                if (result)
                {
                    ShowMessage.Notification("批量插入数据库表CollegeInfo中成功!");
                    BindData();
                }
            }
    
            /// <summary>
            ///     一次性把DataTable中的数据插入数据库
            /// </summary>
            /// <param name="source">DataTable数据源</param>
            /// <returns>true - 成功,false - 失败</returns>
            public bool BatchInsertIntoDatabase(DataTable source)
            {
                SqlTransaction tran = null; // 声明一个事务对象
                try
                {
                    using (var con = new SqlConnection(ConnectionString))
                    {
                        con.Open(); // 打开数据库连接
    
                        using (tran = con.BeginTransaction())
                        {
                            using (var copy = new SqlBulkCopy(con, SqlBulkCopyOptions.Default, tran))
                            {
                                copy.DestinationTableName = "[CollegeInfo]"; // 指定服务器上目标表的名称
                                copy.WriteToServer(source); // 执行把DataTable中的数据写入DB  注意DataTable表结构要与数据库表结构一样
                                tran.Commit(); // 提交事务
    
                                return true; // 执行成功
                            }
                        }
                    }
                }
                catch (Exception ex)
                {
                    tran?.Rollback();
    
                    // 记录日志
                    Console.WriteLine(ex.Message);
    
                    return false;
                }
            }
        }
    }
    namespace ConfigurationManagerSqlServerVersion
    {
        /// <summary>
        ///     CollegeInfo
        /// </summary>
        public class CollegeInfo
        {
            public string Name { get; set; }
            public string Type { get; set; }
            public string Year { get; set; }
            public string Sponsor { get; set; }
            public string Remark { get; set; }
        }
    }
    /*
        SQL-建表CollegeInfo语句
    */
    
    USE TestDB;
    GO
    
    IF EXISTS (SELECT * FROM sys.tables WHERE name = 'CollegeInfo')
    BEGIN
        DROP TABLE CollegeInfo;
    END;
    
    CREATE TABLE CollegeInfo
    (
        Name NVARCHAR(100) NOT NULL,
        Type NVARCHAR(10) NOT NULL,
        [Year] NVARCHAR(4) NOT NULL
            DEFAULT '2021',
        Sponsor NVARCHAR(100) NOT NULL,
        Remark NVARCHAR(MAX) NOT NULL
    );
    
    SELECT Name,
           Type,
           Year,
           Sponsor,
           Remark
    FROM dbo.CollegeInfo;
    踏实做一个为人民服务的搬运工!
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  • 原文地址:https://www.cnblogs.com/LifeDecidesHappiness/p/15457433.html
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