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#
<%...@PageLanguage="C#"AutoEventWireup="true"%>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN"
"/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<scriptrunat="server">...
ICollectionCreateDataSource()
...{
System.Data.DataTabledt=newSystem.Data.DataTable();
System.Data.DataRowdr;
dt.Columns.Add(newSystem.Data.DataColumn("学生姓名",typeof(System.String)));
dt.Columns.Add(newSystem.Data.DataColumn("语文",typeof(System.Decimal)));
dt.Columns.Add(newSystem.Data.DataColumn("数学",typeof(System.Decimal)));
dt.Columns.Add(newSystem.Data.DataColumn("英语",typeof(System.Decimal)));
for(inti=0;i<8;i++)
...{
System.Randomrd=newSystem.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.DataViewdv=newSystem.Data.DataView(dt);
returndv;
}
protectedvoidPage_Load(objectsender,EventArgse)
...{
if(!IsPostBack)
...{
GridView1.BorderColor=System.Drawing.Color.DarkOrange;
GridView1.DataSource=CreateDataSource();
GridView1.DataBind();
}
}
protectedvoidGridView1_RowCreated(objectsender,GridViewRowEventArgse)
...{
if(e.Row.RowType==DataControlRowType.Header)
...{
GridViewRowrowHeader=newGridViewRow(0,0,DataControlRowType.Header,DataControlRowState.Normal);
rowHeader.BackColor=System.Drawing.Color.White;
rowHeader.Font.Bold=true;
TableCellCollectioncells=e.Row.Cells;
TableCellheaderCell=newTableCell();
headerCell.Text="";
rowHeader.Cells.Add(headerCell);
headerCell=newTableCell();
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);
}
}
protectedvoidGridView1_RowDataBound(objectsender,GridViewRowEventArgse)
...{
e.Row.Attributes.Add("style","background:#FFF");
}
</script>
<htmlxmlns="/1999/xhtml">
<head>
<title>合并GridView的表头单元格</title>
</head>
<body>
<formid="Form1"runat="server">
<asp:GridViewID="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>
<%...@PageLanguage="VB"%>
<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN""/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<scriptrunat="server">...
FunctionCreateDataSource()AsICollection
DimdtAsSystem.Data.DataTable=NewSystem.Data.DataTable
DimdrAsSystem.Data.DataRow
dt.Columns.Add(NewSystem.Data.DataColumn("学生姓名",GetType(System.String)))
dt.Columns.Add(NewSystem.Data.DataColumn("语文",GetType(System.Decimal)))
dt.Columns.Add(NewSystem.Data.DataColumn("数学",GetType(System.Decimal)))
dt.Columns.Add(NewSystem.Data.DataColumn("英语",GetType(System.Decimal)))
DimiAsInteger=0
Fori=0To7
DimrdAsSystem.Random=NewSystem.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
DimdvAsSystem.Data.DataView=NewSystem.Data.DataView(dt)
Returndv
EndFunction
ProtectedSubPage_Load(ByValsenderAsObject,ByValeAsEventArgs)
IfNotIsPostBackThen
GridView1.BorderColor=System.Drawing.Color.DarkOrange
GridView1.DataSource=CreateDataSource()
GridView1.DataBind()
EndIf
EndSub
ProtectedSubGridView1_RowCreated(ByValsenderAsObject,ByValeAsGridViewRowEventArgs)
Ife.Row.RowType=DataControlRowType.HeaderThen
DimrowHeaderAsGridViewRow=NewGridViewRow(0,0,DataControlRowType.Header,DataControlRowState.Normal)
rowHeader.BackColor=System.Drawing.Color.White
rowHeader.Font.Bold=True
DimcellsAsTableCellCollection=e.Row.Cells
DimheaderCellAsTableCell=NewTableCell
headerCell.Text=""
rowHeader.Cells.Add(headerCell)
headerCell=NewTableCell
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)
EndIf
EndSub
ProtectedSubGridView1_RowDataBound(ByValsenderAsObject,ByValeAsGridViewRowEventArgs)
e.Row.Attributes.Add("style","background:#FFF")
EndSub
</script>
<htmlxmlns="/1999/xhtml">
<head>
<title>合并GridView的表头单元格</title>
</head>
<body>
<formid="Form1"runat="server">
<asp:GridViewID="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>
