I'm using GridView from DevExpress. This is the ASPX Code
<dx:ASPxGridView ID="grid_JobNotice" runat="server" AutoGenerateColumns="False"
ClientInstanceName="grid_JobNotice" KeyFieldName="JobNoticeId"
OnCustomJSProperties="grid_CustomJSProperties" DataSourceID="sds_JobNotice">
<Columns>
<dx:GridViewCommandColumn ShowSelectCheckbox="True" VisibleIndex="0">
<HeaderTemplate>
<dx:ASPxCheckBox ID="cbAll" runat="server" ClientInstanceName="cbAll" ToolTip="Select all rows"
BackColor="White" OnInit="cbAll_Init">
<ClientSideEvents CheckedChanged="OnAllCheckedChanged&qu ...
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