zoukankan      html  css  js  c++  java
  • GridView 使用方法总结 (二)

          接着上面GridView 使用方法总结 (一) http://www.cnblogs.com/sufei/archive/2010/03/27/1698590.html#commentform

    的内容开始吧。

    14.GridView固定表头(不用javascript只用CSS!,很好用)

    前台代码

    代码
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        
    <title>GridView固定表头 清清月儿http://blog.csdn.net/21aspnet </title>
            
    <style> 
    .Freezing 
       
    { 
        
       position
    :relative ; 
       table-layout
    :fixed;
       top
    :expression(this.offsetParent.scrollTop);   
       z-index
    : 10;
       
    } 

    .Freezing th
    {text-overflow:ellipsis;overflow:hidden;white-space: nowrap;padding:2px;}
    </style> 
    </head>
    <body style="font-size=12px">
        
    <form id="form1" runat="server">
        
    <div style="overflow-y: scroll; height: 200px;300px" id="dvBody">
                       
    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                            OnRowUpdating
    ="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >
                            
    <FooterStyle BackColor="White" ForeColor="#000066" />
                            
    <Columns>
                                
    <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                                
    <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" SortExpression="邮政编码" />
                                
    <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                                
    <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                                
                            
    </Columns>
                            
    <RowStyle ForeColor="#000066" />
                            
    <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                            
    <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                            
    <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" CssClass="Freezing"/>
                        
    </asp:GridView>
            
    </div>

        
    </form>
    </body>
    </html>

    用法:CSS设如上的样式,HeaderStyle加CssClass="Freezing,套住GridView的Div设置高度宽度 <div style="overflow-y: scroll; height: 200px;200px" >

    15.GridView合并表头多重表头无错完美版(以合并3列3行举例)

    后台代码

    代码
    using System;
    using System.Data;
    using System.Configuration;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.Data.SqlClient;
    using System.Drawing;
    public partial class _Default : System.Web.UI.Page 
    {
        SqlConnection sqlcon;
        SqlCommand sqlcom;
        
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
        
    protected void Page_Load(object sender, EventArgs e)
        {
            
    if (!IsPostBack)
            {
                bind();
                
            }
        }
        
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
        {
            GridView1.EditIndex 
    = e.NewEditIndex;
            bind();
        }
        
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            sqlcon 
    = new SqlConnection(strCon);
            
    string sqlstr = "update 飞狐工作室 set 姓名='"
                
    + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
                
    + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='" 
                
    + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
            sqlcom
    =new SqlCommand(sqlstr,sqlcon);
            sqlcon.Open();
            sqlcom.ExecuteNonQuery();
            sqlcon.Close();
            GridView1.EditIndex 
    = -1;
            bind();
        }
        
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            GridView1.EditIndex 
    = -1;
            bind();
        }
        
    public void bind()
        {
            
    string sqlstr = "select top 10 * from 飞狐工作室";
            sqlcon 
    = new SqlConnection(strCon);
            SqlDataAdapter myda 
    = new SqlDataAdapter(sqlstr, sqlcon);
            DataSet myds 
    = new DataSet();
            sqlcon.Open();
            myda.Fill(myds, 
    "飞狐工作室");
            GridView1.DataSource 
    = myds;
            GridView1.DataKeyNames 
    = new string[] { "身份证号码" };
            GridView1.DataBind();
            sqlcon.Close();
        }

    //这里就是解决方案
        protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
        {
            
    switch (e.Row.RowType)
            {
                
    case DataControlRowType.Header:
                    
    //第一行表头
                    TableCellCollection tcHeader = e.Row.Cells;
                    tcHeader.Clear();
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    0].Attributes.Add("rowspan""3"); //跨Row
                    tcHeader[0].Attributes.Add("bgcolor""white");
                    tcHeader[
    0].Text = "";
                    tcHeader.Add(
    new TableHeaderCell());
                    
    //tcHeader[1].Attributes.Add("bgcolor", "Red");
                    tcHeader[1].Attributes.Add("colspan""6"); //跨Column
                    tcHeader[1].Text = "全部信息</th></tr><tr>";

                    
    //第二行表头
                    tcHeader.Add(new TableHeaderCell());
                    tcHeader[
    2].Attributes.Add("bgcolor""DarkSeaGreen");
                    tcHeader[
    2].Text = "身份证号码";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    3].Attributes.Add("bgcolor""LightSteelBlue");
                    tcHeader[
    3].Attributes.Add("colspan""2");
                    tcHeader[
    3].Text = "基本信息";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    4].Attributes.Add("bgcolor""DarkSeaGreen");
                    tcHeader[
    4].Text = "福利";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    5].Attributes.Add("bgcolor""LightSteelBlue");
                    tcHeader[
    5].Attributes.Add("colspan""2");
                    tcHeader[
    5].Text = "联系方式</th></tr><tr>";

                    
    //第三行表头
                    tcHeader.Add(new TableHeaderCell());
                    tcHeader[
    6].Attributes.Add("bgcolor""Khaki");
                    tcHeader[
    6].Text = "身份证号码";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    7].Attributes.Add("bgcolor""Khaki");
                    tcHeader[
    7].Text = "姓名";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    8].Attributes.Add("bgcolor""Khaki");
                    tcHeader[
    8].Text = "出生日期";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    9].Attributes.Add("bgcolor""Khaki");
                    tcHeader[
    9].Text = "薪水";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    10].Attributes.Add("bgcolor""Khaki");
                    tcHeader[
    10].Text = "家庭住址";
                    tcHeader.Add(
    new TableHeaderCell());
                    tcHeader[
    11].Attributes.Add("bgcolor""Khaki");
                    tcHeader[
    11].Text = "邮政编码";
                    
    break;
            }
        }
    }

    前台代码

    代码
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
        
    <title>GridView合并多重表头表头 清清月儿http://blog.csdn.net/21aspnet </title>
    </head>
    <body >
        
    <form id="form1" runat="server">
        
    <div  >
                       
    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"
                            OnRowUpdating
    ="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowCreated="GridView1_RowCreated"  >
                            
    <FooterStyle BackColor="White" ForeColor="#000066" />
                            
    <Columns>
                                
    <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                                
    <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                                
    <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                                
    <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />
                                 
    <asp:BoundField DataField="起薪" HeaderText="起薪"  />
                                
    <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                                
    <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                               
                            
    </Columns>
                            
    <RowStyle ForeColor="#000066" />
                            
    <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                            
    <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                            
    <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                        
    </asp:GridView>
            
    </div>

        
    </form>
    </body>
    </html>


     

    16.GridView突出显示某一单元格(例如金额低于多少,分数不及格等)

    解决方案:主要是绑定后过滤

    代码
    GridView1.DataBind();
            
    for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
            {
                DataRowView mydrv 
    = myds.Tables["飞狐工作室"].DefaultView[i];
                
    string score = Convert.ToString(mydrv["起薪"]);
                
    if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等
                {
                    GridView1.Rows[i].Cells[
    4].BackColor = System.Drawing.Color.Red;
                }
            }
            sqlcon.Close();

    所有后台代码

    代码
    using System;
    using System.Data;
    using System.Configuration;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.Data.SqlClient;
    using System.Drawing;

    public partial class Default7 : System.Web.UI.Page
    {
        SqlConnection sqlcon;
        SqlCommand sqlcom;
        
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
        
    protected void Page_Load(object sender, EventArgs e)
        {
            
    if (!IsPostBack)
            {
                bind();

            }
        }
        
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
        {
            GridView1.EditIndex 
    = e.NewEditIndex;
            bind();
        }
        
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            sqlcon 
    = new SqlConnection(strCon);
            
    string sqlstr = "update 飞狐工作室 set 姓名='"
                
    + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
                
    + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
                
    + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
            sqlcom 
    = new SqlCommand(sqlstr, sqlcon);
            sqlcon.Open();
            sqlcom.ExecuteNonQuery();
            sqlcon.Close();
            GridView1.EditIndex 
    = -1;
            bind();
        }
        
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            GridView1.EditIndex 
    = -1;
            bind();
        }
        
    public void bind()
        {
            
    string sqlstr = "select top 10 * from 飞狐工作室";
            sqlcon 
    = new SqlConnection(strCon);
            SqlDataAdapter myda 
    = new SqlDataAdapter(sqlstr, sqlcon);
            DataSet myds 
    = new DataSet();
            sqlcon.Open();
            myda.Fill(myds, 
    "飞狐工作室");
            GridView1.DataSource 
    = myds;
            GridView1.DataKeyNames 
    = new string[] { "身份证号码" };
            GridView1.DataBind();
            
    for (int i = 0; i <= GridView1.Rows.Count - 1; i++)
            {
                DataRowView mydrv 
    = myds.Tables["飞狐工作室"].DefaultView[i];
                
    string score = Convert.ToString(mydrv["起薪"]);
                
    if (Convert.ToDouble(score) < 34297.00)//大家这里根据具体情况设置可能ToInt32等等

                {
                    GridView1.Rows[i].Cells[
    4].BackColor = System.Drawing.Color.Red;
                }
            }
            sqlcon.Close();
        }
    }

    前台代码:

    代码
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <html xmlns="http://www.w3.org/1999/xhtml" >
    <head id="Head1" runat="server">
        
    <title>GridView突出显示某一单元格 清清月儿http://blog.csdn.net/21aspnet </title>
    </head>
    <body >
        
    <form id="form1" runat="server">
        
    <div  >
                       
    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"
                            OnRowUpdating
    ="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"  >
                            
    <FooterStyle BackColor="White" ForeColor="#000066" />
                            
    <Columns>
                                
    <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                                
    <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                                
    <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                                
    <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />
                                 
    <asp:BoundField DataField="起薪" HeaderText="起薪"  DataFormatString="{0:C}" HtmlEncode="false"/>
                                
    <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                                
    <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                               
                            
    </Columns>
                            
    <RowStyle ForeColor="#000066" />
                            
    <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                            
    <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                            
    <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                        
    </asp:GridView>
            
    </div>

        
    </form>
    </body>
    </html>

    17.GridView加入自动求和求平均值小计

     

    解决方法:

    代码
    private double sum = 0;//取指定列的数据和,你要根据具体情况对待可能你要处理的是int
    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            
            
    if (e.Row.RowIndex >= 0)
            {
                sum 
    += Convert.ToDouble(e.Row.Cells[6].Text);
            }
            
    else if (e.Row.RowType == DataControlRowType.Footer)
            {
                e.Row.Cells[
    5].Text = "总薪水为:";
                e.Row.Cells[
    6].Text = sum.ToString();
                e.Row.Cells[
    3].Text = "平均薪水为:";
                e.Row.Cells[
    4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
                
            }
        }

    后台所有代码:

    代码
    using System;
    using System.Data;
    using System.Configuration;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.Data.SqlClient;
    using System.Drawing;

    public partial class Default7 : System.Web.UI.Page
    {
        SqlConnection sqlcon;
        SqlCommand sqlcom;
        
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
        
    protected void Page_Load(object sender, EventArgs e)
        {
            
    if (!IsPostBack)
            {
                bind();

            }
        }
        
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
        {
            GridView1.EditIndex 
    = e.NewEditIndex;
            bind();
        }
        
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            sqlcon 
    = new SqlConnection(strCon);
            
    string sqlstr = "update 飞狐工作室 set 姓名='"
                
    + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',家庭住址='"
                
    + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where 身份证号码='"
                
    + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
            sqlcom 
    = new SqlCommand(sqlstr, sqlcon);
            sqlcon.Open();
            sqlcom.ExecuteNonQuery();
            sqlcon.Close();
            GridView1.EditIndex 
    = -1;
            bind();
        }
        
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
            GridView1.EditIndex 
    = -1;
            bind();
        }
        
    public void bind()
        {
            
    string sqlstr = "select top 5 * from 飞狐工作室";
            sqlcon 
    = new SqlConnection(strCon);
            SqlDataAdapter myda 
    = new SqlDataAdapter(sqlstr, sqlcon);
            DataSet myds 
    = new DataSet();
            sqlcon.Open();
            myda.Fill(myds, 
    "飞狐工作室");
            GridView1.DataSource 
    = myds;
            GridView1.DataKeyNames 
    = new string[] { "身份证号码" };
            GridView1.DataBind();
            sqlcon.Close();
        }
        
    private double sum = 0;//取指定列的数据和
        protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            
            
    if (e.Row.RowIndex >= 0)
            {
                sum 
    += Convert.ToDouble(e.Row.Cells[6].Text);
            }
            
    else if (e.Row.RowType == DataControlRowType.Footer)
            {
                e.Row.Cells[
    5].Text = "总薪水为:";
                e.Row.Cells[
    6].Text = sum.ToString();
                e.Row.Cells[
    3].Text = "平均薪水为:";
                e.Row.Cells[
    4].Text = ((int)(sum / GridView1.Rows.Count)).ToString();
                
            }
        }
    }

    前台:唯一的花头就是设置ShowFooter="True" ,否则默认表头为隐藏的!

    代码
    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  OnRowEditing="GridView1_RowEditing"
                            OnRowUpdating
    ="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px" OnRowDataBound="GridView1_RowDataBound" ShowFooter="True"  >
                            
    <FooterStyle BackColor="White" ForeColor="#000066" />
                            
    <Columns>
                                
    <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                                
    <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                                
    <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                                
    <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />
                                
    <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                                
    <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                                
    <asp:BoundField DataField="起薪" HeaderText="起薪"  />
                               
                            
    </Columns>
                            
    <RowStyle ForeColor="#000066" />
                            
    <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                            
    <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                            
    <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                        
    </asp:GridView>


    18.GridView数据导入Excel/Excel数据读入GridView

    页面增加一个按钮,单击事件添加如下方法:

    代码
    protected void Button1_Click(object sender, EventArgs e)
        {
            Export(
    "application/ms-excel""学生成绩报表.xls");
        }

        
    private void Export(string FileType, string FileName)
        {
            Response.Charset 
    = "GB2312";
            Response.ContentEncoding 
    = System.Text.Encoding.UTF7;
            Response.AppendHeader(
    "Content-Disposition""attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
            Response.ContentType 
    = FileType;
            
    this.EnableViewState = false;
            StringWriter tw 
    = new StringWriter();
            HtmlTextWriter hw 
    = new HtmlTextWriter(tw);
            GridView1.RenderControl(hw);
            Response.Write(tw.ToString());
            Response.End();
        }


    //如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内
       
    public override void VerifyRenderingInServerForm(Control control)
        {
        }
    还有由于是文件操作所以要引入名称空间IO和Text

    后台代码:

    代码
    using System;
    using System.Data;
    using System.Configuration;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.Data.SqlClient;
    using System.Drawing;
    using System.IO;
    using System.Text;
    public partial class Default7 : System.Web.UI.Page
    {
        SqlConnection sqlcon;
        SqlCommand sqlcom;
        
    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa";
        
    protected void Page_Load(object sender, EventArgs e)
        {
            
    if (!IsPostBack)
            {
                bind();

            }
        }
        
        
    public void bind()
        {
            
    string sqlstr = "select top 5 * from 飞狐工作室";
            sqlcon 
    = new SqlConnection(strCon);
            SqlDataAdapter myda 
    = new SqlDataAdapter(sqlstr, sqlcon);
            DataSet myds 
    = new DataSet();
            sqlcon.Open();
            myda.Fill(myds, 
    "飞狐工作室");
            GridView1.DataSource 
    = myds;
            GridView1.DataKeyNames 
    = new string[] { "身份证号码" };
            GridView1.DataBind();
            sqlcon.Close();
        }

        
    protected void Button1_Click(object sender, EventArgs e)
        {
            Export(
    "application/ms-excel""学生成绩报表.xls");
        }

        
    private void Export(string FileType, string FileName)
        {
            Response.Charset 
    = "GB2312";
            Response.ContentEncoding 
    = System.Text.Encoding.UTF7;
            Response.AppendHeader(
    "Content-Disposition""attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
            Response.ContentType 
    = FileType;
            
    this.EnableViewState = false;
            StringWriter tw 
    = new StringWriter();
            HtmlTextWriter hw 
    = new HtmlTextWriter(tw);
            GridView1.RenderControl(hw);
            Response.Write(tw.ToString());
            Response.End();
        }
        
    public override void VerifyRenderingInServerForm(Control control)
        {
        }
        
    }

    前台

    代码
    <asp:GridView ID="GridView1" runat="server"    AutoGenerateColumns="False" CellPadding="3"  
                             BackColor
    ="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px" Font-Size="12px"   >
                            
    <FooterStyle BackColor="White" ForeColor="#000066" />
                            
    <Columns>
                                
    <asp:BoundField DataField="身份证号码" HeaderText="编号" ReadOnly="True" />
                                
    <asp:BoundField DataField="姓名" HeaderText="姓名"  />
                                
    <asp:BoundField DataField="出生日期" HeaderText="邮政编码"  />
                                
    <asp:BoundField DataField="家庭住址" HeaderText="家庭住址"  />
                                
    <asp:BoundField DataField="邮政编码" HeaderText="邮政编码" />
                                
    <asp:BoundField DataField="起薪" HeaderText="起薪"  />
                               
                            
    </Columns>
                            
    <RowStyle ForeColor="#000066" />
                            
    <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                            
    <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left"  CssClass="ms-formlabel DataGridFixedHeader"/>
                            
    <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                        
    </asp:GridView>
            
    <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出" />

    读取Excel数据的代码:这个很简单的
    private DataSet CreateDataSource()
        {
            string strCon;
            strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";
            OleDbConnection olecon = new OleDbConnection(strCon);
            OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);
            DataSet myds = new DataSet();
            myda.Fill(myds);
            return myds;
        }
        protected void Button1_Click(object sender, EventArgs e)
        {
            GridView1.DataSource = CreateDataSource();
            GridView1.DataBind();
        }


    由于时间关系,这个文章先到此。有时间再写,其实还有很多技巧,不过我觉得如果能融汇贯通应该可以举一反三

    --------------------------------------------------------------------------------------------------------------------------------

    文章到这里算是把月儿老师的文章整理完了

    应该说说我的想法了,呵呵,真多啊,月儿老师真能写,呵呵

      月儿老师呢没有使用Sqlhelper或是什么三层工厂等更高一级的东西,只是使用简单直接的方法来实现 功能 ,让大家明白这个功能可以实现,但是大家一定不要以为

    老师只会这些,其实老师是想让高手看方法,水平一般的可以得到启示,而刚入门的可以直接拿来用并得到提高,我感觉应该是这样意吧

       如果写的太深了初学都就看不明白了,而水平高点的会感觉不舒服,高手会不绡于看,因为他们也会。

     

       月儿老师的最后一项   18.GridView数据导入Excel/Excel数据读入GridView

       说到导入大家一定能想到导出的功能 ,在C# 将数据导出到Excel汇总 http://www.cnblogs.com/sufei/archive/2009/05/23/1487540.html

    这里有总结的不少导出的方法有兴趣的朋友可以去看看。

         关于Gridview的使用我也写过一个,不过写的没有这么详细,可以参考 一下

    1.解决DataGridView绑定List后不能排序的问题

    http://www.cnblogs.com/sufei/archive/2010/02/04/1663125.html

    2.为gridview“删除”列添加确认对话框的方法

    http://www.cnblogs.com/sufei/archive/2009/06/10/1500254.html

    3.详解Asp.Net Sql数据库连接字符串

    http://www.cnblogs.com/sufei/archive/2009/06/02/1494758.html

    这里强说不是写的Girdview的但是这个问题很容易碰到加个导航吧在这里

    4.GridView的精妙使用

    http://www.cnblogs.com/sufei/archive/2009/03/14/1485995.html

      

       

  • 相关阅读:
    如何提高英阅读英文技术资料
    如何阅读英语文章
    vijosP1223麦森数
    vijosP1359 Superprime
    vijosP1319 数列
    vijosP1447 开关灯泡
    vijosP1164 曹冲养猪
    vijosP1016 北京2008的挂钟
    洛谷P1457 城堡(The Castle)
    洛谷P1294 高手去散步
  • 原文地址:https://www.cnblogs.com/sufei/p/1698923.html
Copyright © 2011-2022 走看看