代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GridView_Title.aspx.cs" Inherits="GridView_GridView_Title" %>
<!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，完全可以从数据看取得 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>