javascript代码如下：
function SelectAll(spanChk)
{
// Added as ASPX uses SPAN for checkbox
var oItem = spanChk.children;
var theBox=oItem.item(0)
xState=theBox.checked;
elm=theBox.form.elements;
for(i=0;i<elm.length;i++)
if(elm[i].type=="checkbox" && elm[i].id!=theBox.id)
{
//elm[i].click();
if(elm[i].checked!=xState)
elm[i].click();
//elm[i].checked=xState;
}
}
DataGrid中的调用方法如下：用红色标记
<Columns>
<asp:TemplateColumn>
<HeaderTemplate>
<asp:CheckBox ID="AllChk" Runat="server" AutoPostBack="False" ToolTip="全选/全不选" onclick="javascript:SelectAll(this);"></asp:CheckBox>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="Chk" Runat="server" AutoPostBack="False" onclick="HighlightRow(this)" OnCheckedChanged="Chk_CheckedChanged"></asp:CheckBox>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn HeaderText="主题" DataField="Topic"></asp:BoundColumn>
<asp:BoundColumn HeaderText="发布人" DataField="Person"></asp:BoundColumn>
<asp:BoundColumn HeaderText="发布时间" DataField="Time"></asp:BoundColumn>
<asp:BoundColumn HeaderText="状态" DataField="State"></asp:BoundColumn>
</Columns>
