Validation summary on no data

Question

My page contains more than one dropdown list,in which some is mandatory fields,hence given required field validator.What i need is to include validation summarry,only if the datatable bound to DDL is empty,ie,only if the DDL contains no data to chose from.Ho to achieve this?

Answer 1

This is for your Knowledge:

<asp:panel ID="ErrorsPanel" runat="server" CssClass="ErrorSummary">
    <asp:CustomValidator id="CustomValidator1" runat="server" 
        Display="None" EnableClientScript="False"></asp:CustomValidator>
    <asp:ValidationSummary id="ErrorSummary" runat="server" 
        HeaderText="Errors occurred:"></asp:ValidationSummary>
</asp:panel>

Whenever you find the ddl is empty, you should execute this below code :

CustomValidator1.IsValid = False
CustomValidator1.ErrorMessage = "The DDL is Empty"

you can also use the Required field validator for the specific control.

Hope this helps...