ASP.NET 2.0中GridView无限层复杂表头的实现

来源：互联网发布：正品高仿淘宝特卖编辑：程序博客网时间：2024/05/16 23:47
实现方法就是给单元格填充我们想要的格式代码。
单击显示全图，Ctrl+滚轮缩放图片
复制
保存
<%@ Page Language="C#" AutoEventWireup="true" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">// 计算数据，完全可以从数据库取得  ICollection CreateDataSource( )  {    System.Data.DataTable dt = new System.Data.DataTable();    System.Data.DataRow dr;    dt.Columns.Add(new System.Data.DataColumn("学生班级", typeof(System.String)));    dt.Columns.Add(new System.Data.DataColumn("学生姓名", typeof(System.String)));    dt.Columns.Add(new System.Data.DataColumn("语文", typeof(System.Decimal)));    dt.Columns.Add(new System.Data.DataColumn("数学", typeof(System.Decimal)));    dt.Columns.Add(new System.Data.DataColumn("英语", typeof(System.Decimal)));    dt.Columns.Add(new System.Data.DataColumn("计算机", typeof(System.Decimal)));    for (int i = 0; i < 8; i++)    {      System.Random rd = new System.Random(Environment.TickCount * i); ;      dr = dt.NewRow();      dr[0] = "班级" + i.ToString();      dr[1] = "学生" + i.ToString();      dr[2] = System.Math.Round(rd.NextDouble() * 100, 2);      dr[3] = System.Math.Round(rd.NextDouble() * 100, 2);      dr[4] = System.Math.Round(rd.NextDouble() * 100, 2);      dr[5] = System.Math.Round(rd.NextDouble() * 100, 2);      dt.Rows.Add(dr);    }    System.Data.DataView dv = new System.Data.DataView(dt);    return dv;  }  protected void Page_Load( object sender, EventArgs e )  {    if (!IsPostBack)    {      GridView1.BorderColor = System.Drawing.Color.DarkOrange;      GridView1.DataSource = CreateDataSource();      GridView1.DataBind();    }  }  protected void GridView1_RowCreated( object sender, GridViewRowEventArgs e )  {    if (e.Row.RowType == DataControlRowType.Header)    {      //创建一个GridViewRow，相当于表格的 TR 一行      GridViewRow rowHeader = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);      string HeaderBackColor = "#EDEDED";      rowHeader.BackColor = System.Drawing.ColorTranslator.FromHtml(HeaderBackColor);      //实现确定要显示的表头样式，也可以通过计算生成      //    <tr>      //      <td rowspan='2'>关键单元格</td>      //      <td colspan='2'>表头文字</td>      //      <td colspan='2'>表头文字</td>      //      <td>表头文字</td>      //      </tr>      //      <tr bgcolor='#FFF'>      //      <td colspan='2'>表头文字</td>      //      <td rowspan='2'>表头文字</td>      //      <td colspan='2'>表头文字</td>      //      </tr>      //      <tr bgcolor='#FFF'>      //      <td>表头文字</td>      //      <td>表头文字</td>      //      <td>表头文字</td>      //      <td>表头文字</td>      //      <td>表头文字</td>";      //   </tr>      // 上面的样式可以设置斜线      Literal newCells = new Literal();      newCells.Text = @"表头文字1</th>                  <th colspan='2'>表头文字2</th>                  <th colspan='2'>表头文字3</th>                  <th>表头文字4</th>                  </tr>                  <tr bgcolor='" + HeaderBackColor + "'>";      newCells.Text += @"                                           <th colspan='2'>表头文字5</th>                  <th rowspan='2'>表头文字6</th>                  <th colspan='2'>表头文字7</th>                  </tr>                  <tr bgcolor='" + HeaderBackColor + "'>";      newCells.Text += @"                    <th>表头文字8</th>                  <th>表头文字9</th>                  <th>表头文字10</th>                  <th>表头文字11</th>                  <th>表头文字12";      TableCellCollection cells = e.Row.Cells;      TableHeaderCell headerCell = new TableHeaderCell();      //下面的属性设置与 <td rowspan='2'>关键单元格</td> 要一致      headerCell.RowSpan = 2;      headerCell.Controls.Add(newCells);      rowHeader.Cells.Add(headerCell);      rowHeader.Cells.Add(headerCell);      rowHeader.Visible = true;      //添加到 GridView1      GridView1.Controls[0].Controls.AddAt(0, rowHeader);    }  }  protected void GridView1_RowDataBound( object sender, GridViewRowEventArgs e )  {    if (e.Row.RowType == DataControlRowType.Header)    {      e.Row.Attributes.Add("style", "background:#9999FF;color:#FFFFFF;font-size:14px");    }    else    {      e.Row.Attributes.Add("style", "background:#FFF");    }  }</script><html xmlns="http://www.w3.org/1999/xhtml"><head>  <title>为 GridView 添加多层表头</title></head><body>  <form id="Form1" runat="server">    <asp:GridView ID="GridView1" runat="server" CellSpacing="1" CellPadding="3" Font-Size="12px"      Width="600px" BackColor="#000000" BorderWidth="0" OnRowDataBound="GridView1_RowDataBound"      OnRowCreated="GridView1_RowCreated">    </asp:GridView>  </form></body></html>