Checking all the checkboxes

Question

I need to check all the checkboxes when I click select all check box in the header of the datagrid. How can I do that?

Answer 1

Refer this thread for more information 

http://stackoverflow.com/questions/756033/c-sharp-code-for-select-all-checkbox-in-wpf-datagrid

Answer 2

WPF: I need to check all the checkboxes when I click select all check box in the header of the datagrid in WPF.

Answer 3

 <script type="text/javascript">    // Let's use a lowercase function name to keep with JavaScript conventions    function selectAll(invoker) {   
    // Since ASP.NET checkboxes are really HTML input elements      
  //  let's get all the inputs         var inputElements = document.getElementsByTagName('input');    
    for (var i = 0 ; i < inputElements.length ; i++)
 {            var myElement = inputElements[i];             // Filter through the input types looking for checkboxes            if (myElement.type === "checkbox") {                // Use the invoker (our calling element) as the reference                //  for our checkbox status      
          myElement.checked = invoker.checked;      
      }       
}   
}

</script> <!-- assuming that SqlDataSource1 is the datasource for my GridView -->

<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource1">    <Columns>        <asp:TemplateField>            <AlternatingItemTemplate>                <asp:CheckBox ID="CheckBox1" runat="server" />            </AlternatingItemTemplate>            <ItemTemplate>                <asp:CheckBox ID="CheckBox1" runat="server" />            </ItemTemplate>            <HeaderTemplate>                <asp:CheckBox ID="cbSelectAll" runat="server" Text="Select All" OnClick="selectAll(this)" />            </HeaderTemplate>            <HeaderStyle HorizontalAlign="Left" />            <ItemStyle HorizontalAlign="Left" />        </asp:TemplateField>    </Columns></asp:GridView> 

Answer 4

Hi Mrunal Bhandarkar,
Check out these links:
http://www.aspsnippets.com/Articles/Implement-check-all-checkbox-functionality-in-ASPNet-GridView-control-using-JavaScript.aspx

http://www.dotnetgallery.com/kb/resource18-Gridview-header-checkbox-select-and-deselect-all-rows-using-client-side-Jav.aspx.aspx

Hope this will help you.
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