Trying to validate date in a textbox with the code below.
<asp:TextBox ID="txtstartdate" ReadOnly="false" runat="server" Width="100px"></asp:TextBox>
<asp:ImageButton runat="Server" ID="img_startcalendar" ImageUrl="~/Images/calendar_24.gif"
AlternateText="Click to show calendar" /><br />
<cc1:CalendarExtender ID="calendarButtonExtender" runat="server" TargetControlID="txtstartdate"
PopupButtonID="img_startcalendar" />
<cc1:MaskedEditExtender ID="mee_startdate" runat="server" Mask="99/99/9999" InputDirection="LeftToRight"
MaskType="Date" PromptCharacter=" " ClearMaskOnLostFocus="false" Ta ...
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