ASP.NET 2.0中合并 GridView 的表头单元格

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作者:孟宪会 出自:【孟宪会之精彩世界】 发布日期:2006年9月26日 22点53分50秒

在实际工作中,往往需要合并表格头部的单元格,下面就是一个实现的例子。运行结果如图:

C#

<%@ 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">ICollection CreateDataSource(){System.Data.DataTable dt = new System.Data.DataTable();System.Data.DataRow dr;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)));for (int i = 0; i < 8; i++){System.Random rd = new System.Random(Environment.TickCount * i); ;dr = dt.NewRow();dr[0] = "学生" + i.ToString();dr[1] = System.Math.Round(rd.NextDouble() * 100, 2);dr[2] = System.Math.Round(rd.NextDouble() * 100, 2);dr[3] = 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){GridViewRow rowHeader = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal);rowHeader.BackColor = System.Drawing.Color.White;rowHeader.Font.Bold = true;TableCellCollection cells = e.Row.Cells;TableCell headerCell = new TableCell();headerCell.Text = "";rowHeader.Cells.Add(headerCell);headerCell = new TableCell();headerCell.Text = "学生成绩";headerCell.ColumnSpan = cells.Count - 1;headerCell.HorizontalAlign = HorizontalAlign.Center;rowHeader.Cells.Add(headerCell);rowHeader.Visible = true;GridView1.Controls[0].Controls.AddAt(0, rowHeader);}}protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e){e.Row.Attributes.Add("style", "background:#FFF");}</script><html xmlns="http://www.w3.org/1999/xhtml"><head><title>合并 GridView 的表头单元格</title></head><body><form id="Form1" runat="server"><asp:GridView ID="GridView1" runat="server" CellSpacing="1" CellPadding="3"Font-Size="12px" Width="300px" BackColor="orange" BorderWidth="0"OnRowDataBound="GridView1_RowDataBound" OnRowCreated="GridView1_RowCreated"></asp:GridView></form></body></html>

VB.NET

<%@ Page Language="VB" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><script runat="server">Function CreateDataSource() As ICollectionDim dt As System.Data.DataTable = New System.Data.DataTableDim dr As System.Data.DataRowdt.Columns.Add(New System.Data.DataColumn("学生姓名", GetType(System.String)))dt.Columns.Add(New System.Data.DataColumn("语文", GetType(System.Decimal)))dt.Columns.Add(New System.Data.DataColumn("数学", GetType(System.Decimal)))dt.Columns.Add(New System.Data.DataColumn("英语", GetType(System.Decimal)))Dim i As Integer = 0For i = 0 To 7Dim rd As System.Random = New System.Random(Environment.TickCount * i)dr = dt.NewRowdr(0) = "学生" + i.ToStringdr(1) = System.Math.Round(rd.NextDouble * 100, 2)dr(2) = System.Math.Round(rd.NextDouble * 100, 2)dr(3) = System.Math.Round(rd.NextDouble * 100, 2)dt.Rows.Add(dr)NextDim dv As System.Data.DataView = New System.Data.DataView(dt)Return dvEnd FunctionProtected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)If Not IsPostBack ThenGridView1.BorderColor = System.Drawing.Color.DarkOrangeGridView1.DataSource = CreateDataSource()GridView1.DataBind()End IfEnd SubProtected Sub GridView1_RowCreated(ByVal sender As Object, ByVal e As GridViewRowEventArgs)If e.Row.RowType = DataControlRowType.Header ThenDim rowHeader As GridViewRow = New GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Normal)rowHeader.BackColor = System.Drawing.Color.WhiterowHeader.Font.Bold = TrueDim cells As TableCellCollection = e.Row.CellsDim headerCell As TableCell = New TableCellheaderCell.Text = ""rowHeader.Cells.Add(headerCell)headerCell = New TableCellheaderCell.Text = "学生成绩"headerCell.ColumnSpan = cells.Count - 1headerCell.HorizontalAlign = HorizontalAlign.CenterrowHeader.Cells.Add(headerCell)rowHeader.Visible = TrueGridView1.Controls(0).Controls.AddAt(0, rowHeader)End IfEnd SubProtected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)e.Row.Attributes.Add("style", "background:#FFF")End Sub</script><html xmlns="http://www.w3.org/1999/xhtml"><head><title>合并 GridView 的表头单元格</title></head><body><form id="Form1" runat="server"><asp:GridView ID="GridView1" runat="server" CellSpacing="1" CellPadding="3"Font-Size="12px" Width="300px" BackColor="orange" BorderWidth="0"OnRowDataBound="GridView1_RowDataBound" OnRowCreated="GridView1_RowCreated"></asp:GridView></form></body></html> 
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