跨页多选

<script language=JAVASCRIPT>
function AddRemoveValues(oChk) {
 //在处理这个地方需要注意的是：你保存的值应该具有唯一性，这样才能不会替换错误的项。
 if(oChk.checked)
 Form1.HdnSelectedValues.value += "," + oChk.value;  
 else
 Form1.HdnSelectedValues.value = Form1.HdnSelectedValues.value.replace("," + oChk.value,"");
}
</script>

<asp:datagrid id=dlcourse runat="server" ShowHeader="False" AutoGenerateColumns="False" BorderWidth="0px" CellPadding="3">
<Columns>
<asp:TemplateColumn>
<ItemTemplate>
    <input type="checkbox" runat="server" id="chkSelect" onclick="AddRemoveValues(this)"
     value='<%#DataBinder.Eval(Container.DataItem,"kc_key") + "," + DataBinder.Eval(Container.DataItem,"kc_name").ToString().Trim()%>' NAME="chkSelect"/>
   
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="kc_name">
<ItemStyle Font-Size="12px">
</ItemStyle>
</asp:BoundColumn>
</Columns>
</asp:datagrid>

 

<INPUT id=HdnSelectedValues type=hidden size=30 name=HdnSelectedValues runat="server">


private void dlcourse_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
  {
   if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
   {
    if(HdnSelectedValues.Value.IndexOf((DataBinder.Eval(e.Item.DataItem,"kc_key").ToString())) >= 0 )
    {
     HtmlInputCheckBox ChkSelected = (HtmlInputCheckBox)(e.Item.Cells[0].FindControl("ChkSelect"));
     ChkSelected.Checked = true;
    }
   }
  }