<com:TContent ID="Content"> <com:TDatePicker ID="MyDate" DateFormat="dd/MM/yyyy" Mode="ImageButton" /> <com:TRequiredFieldValidator ID="validator1" ControlToValidate="MyDate" EnableClientScript="false" ErrorMessage="date required (dd/MM/yyyy)" /> <com:TDataTypeValidator ID="validator2" DataType="Date" DateFormat="dd/MM/yyyy" ControlToValidate="MyDate" EnableClientScript="false" ErrorMessage="date must be of the form dd/MM/yyyy" /> <com:TButton ID="button1" Text="Submit!" /> </com:TContent>