Home > Javascript > Validate CheckBoxList

Validate CheckBoxList

Try this example:

<script type="text/javascript">
    //-- To Validate CheckBoxList
    function ChequarSelecciondeTipoModificacion(source, args)
               var chkListaTipoModificaciones= document.getElementById ('<%= CheckBoxList1.ClientID %>');
               var chkLista= chkListaTipoModificaciones.getElementsByTagName("input");
               for(var i=0;i<chkLista.length;i++)
                        args.IsValid = true;
              args.IsValid = false;
<asp:CheckBoxList ID="CheckBoxList1" runat="server" >
                <asp:CustomValidator ID="CustomValidator1" runat="server" ErrorMessage="<img src='images/alert.gif' style='width:15px;height:15px;'>" ClientValidationFunction="ChequarSelecciondeTipoModificacion"></asp:CustomValidator>

Good Luck

Categories: Javascript
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