JavaScript实现DataGrid中的CheckBox全选与否
JavaScript检索CheckBox并实现全选和全消功能:
DataGrid中的代码主要片段:
<Columns>![](/Images/OutliningIndicators/None.gif)
<HeaderTemplate> //头模板代码, AutoPostBack设为False,不需要回发
<asp:CheckBox id="chkHeader" runat="server" AutoPostBack="False" onclick="javascript:SelectAll(this);"></asp:CheckBox>
</HeaderTemplate>![](/Images/OutliningIndicators/None.gif)
<ItemTemplate> //项模板代码
<asp:CheckBox id="chkItem" runat="server"></asp:CheckBox>
</ItemTemplate>![](/Images/OutliningIndicators/None.gif)
</Columns>
在<head></head>中加入的代码:
<script language="javascript">
function SelectAll(chkHeaderControl)
{
//将除头模板中的其它所有的CheckBox取反
var chkBox=chkHeaderControl;
xState=chkBox.checked;
elem=chkBox.form.elements;
for(i=0;i<elem.length;i++)
{
if(elem[i].type=="checkbox" && elem[i].id!=chkBox.id)
{
if(elem[i].checked!=xState)
{
elem[i].click();
}
}
}
}
</script>
DataGrid中的代码主要片段:
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
在<head></head>中加入的代码:
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
![](/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
![](/Images/OutliningIndicators/ExpandedBlockEnd.gif)
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/None.gif)