How do you validate Date by using which validation Control? | VB.Net Interview Questions

<asp:regularexpressionvalidator id="regExpDate"
runat="server"
ValidationExpression="^\d{2}[\/-]\d{2}[\/-]\d{2,4}$"
ErrorMessage="It is not a valid date"
ControlToValidate="txtpatientvisitdate"
EnableClientScript="False"
Display="Dynamic"></asp:regularexpressionvalidator>