DataGrid Control fill CheckBox on Client Side

This Concept is used to, just click on header checkbox then the all checkbox are checked with out postback operation by using javascript. For example in yahoo mail u just click the header checkbox all grid checkbox will be selected

// This is the javascript code. Just copy and paste the code within the script tag

function CheckAllDataGridCheckBoxes(aspCheckBoxID, checkVal)

{

re = new RegExp(':' + aspCheckBoxID + '$')

for(i = 0; i < Form1.elements.length; i++)

{

elm = document.forms[0].elements[i] if (elm.type == 'checkbox')

{

if (re.test(elm.name)) elm.checked = checkVal

}

// This is the sample design structure of the datagrid, in only display the checkbox and name

</headertemplate />

<asp:datagrid id="dgReciveApp" runat="server" AutoGenerateColumns="False" Width="100%" PageSize="15"
AllowPaging="True" DataKeyField="vc_UserName">
<Columns>
<asp:TemplateColumn HeaderText="Select All">
<HeaderTemplate>
<input ID="chkAll" type="checkbox" onclick="CheckAllDataGridCheckBoxes('chkItem',this.checked)">
Select All</HeaderTemplate>
<ItemTemplate>
<TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0">
<TR>
<TD WIDTH="3%" BGCOLOR="#FFFFFF" height="100%">
<table width="100%" height="100%">
<tr valign="top" height="100%">
<td>
<asp:CheckBox ID="chkItem" Runat="server"></asp:CheckBox></td>
<tr valign="middle" height="100%">
<td valign="middle">

<%# DataBinde.Eval(Container.DataItem,"Name") %>
</td>
</tr>
</table>
</TD>

</tr>

</table>

</table>
</ItemTemplate> </asp:TemplateColumn> </Columns></asp:datagrid>

Here if u click the header checkbox all datagrid itemtemplate ceckbox are selected

< /> <script language="javascript"></script>

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