Hello:

Now I can put checkbox into the WebGrid's header.  But I found a problem that is I only put checkbox into WebGrid's header which doesn't has sub-table.  Why I coundn't put checkbox into sub-table's header?

Insead of templated column, we can go with normal check box type column. And for this check box column header text we can have the below text:

<div><input type = 'checkbox' name = 'cbSelectAll' checked='checked' onclick='SelectAll();'></div>

Write a simple javascript function to read the check box values from individual rows and set the corresponding value in check box 'cbSelectAll'

Best Regards,

Vijay

Thanks your answer.  But I found it wasn't right by your advice.  Why?  I run the program and didn't find the checkbox display in the header.  The code of page is below:

<igtbl:TemplatedColumn BaseColumnName="ReceiveState" Key="ReceiveState" DataType="System.Boolean" Type="CheckBox">
    <Header Caption="接收" />
    <HeaderStyle HorizontalAlign="center" />
    <CellStyle HorizontalAlign="center" />
    <HeaderTemplate>
        <asp:CheckBox ID="cbAll" runat="server" />
    </HeaderTemplate>
</igtbl:TemplatedColumn>