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 icollection dim dt as system.data.datatable = new system.data.datatable dim dr as system.data.datarow dt.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 = 0 for i = 0 to 7 dim rd as system.random = 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) next dim dv as system.data.dataview = new system.data.dataview(dt) return dv end function protected sub page_load(byval sender as object, byval e as eventargs) if not ispostback then gridview1.bordercolor = system.drawing.color.darkorange gridview1.datasource = createdatasource() gridview1.databind() end if end sub protected sub gridview1_rowcreated(byval sender as object, byval e as gridviewroweventargs) if e.row.rowtype = datacontrolrowtype.header then dim rowheader as gridviewrow = new gridviewrow(0, 0, datacontrolrowtype.header, datacontrolrowstate.normal) rowheader.backcolor = system.drawing.color.white rowheader.font.bold = true dim cells as tablecellcollection = e.row.cells dim headercell as tablecell = 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) end if end sub protected 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>文章整理：西部数码--专业提供域名注册、虚拟主机服务
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