hi
I used dropdownlist in page and use ajax CascadingDropDown below are codes
<asp:DropDownList ID="DDLstate" runat="server" CssClass="ddlE">
</asp:DropDownList>
<cc1:CascadingDropDown ID="CDLstate" TargetControlID="DDLstate" PromptText="Select Country"
PromptValue="" ServicePath="../ServiceCS.asmx" ServiceMethod="GetCountries" runat="server" Category="state" />
<asp:RequiredFieldValidator Display="Dynamic" ID="R1" runat="server" ErrorMessage="*لطفاٌ نام استان را وارد نمایید." ControlToValidate="DDLstate" CssClass="valid7M" InitialValue="0"></asp:RequiredFieldValidator>
here when I use cascadingDropDown RequiredFieldValidator didn't work I need to use RequiredFieldValidator how I should change codes to use it?
Best Regards
Neda