CompareValidator to validate two dates

Question

Hi all I am having my date format in the following format dd-MMM-yy I am using compare validator to validate the dates as follows

<asp:CompareValidator ID="cmpDates" runat="server" ControlToValidate="StartDate"
                      SetFocusOnError="true" ControlToCompare="EndDate"
                      ErrorMessage="EndDate must be greater than StartDate"
                      Display="None" Operator="DataTypeCheck"
                      ValidationGroup="vg" Type="Date"                           
                      CultureInvariantValues="true">
</asp:CompareValidator>

But this is not working as per required so can some one help me how Can I validate the dates in the required format

Answer 1

Try this, here we use the Ajax calander control to get the input in dd/mm/yyyy format and then use the compare validator

 <asp:TextBox ID="txtStart" runat="server"></asp:TextBox>
            <cc1:CalendarExtender ID="txtStart_CalendarExtender" runat="server" 
                Enabled="True" TargetControlID="txtStart">
            </cc1:CalendarExtender>
            <asp:CompareValidator ID="CompareValidator1" runat="server" 
                ControlToCompare="txtEnd" ControlToValidate="txtStart" 
                ErrorMessage="CompareValidator"></asp:CompareValidator>

        </div>
        <p>
            <asp:TextBox ID="txtEnd" runat="server"></asp:TextBox>
            <cc1:CalendarExtender ID="txtEnd_CalendarExtender" runat="server" 
                Enabled="True" TargetControlID="txtEnd">
            </cc1:CalendarExtender>
        </p>
        <asp:Button ID="Button1" runat="server" Text="Button" />
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>