How to show the asp:comparevalidator message in Alert Box?

Question

I have used runat=server ControlToValidate=txt1 ControlToCompare=txt2 Operator=LessThan ErrorMessage=start date must be greater than end Date Type=Date> Now i Want to show the error message in alert box.

Shakti Singh Dulawat · Answer

You should use the same ValidationGroup text on all validation controls and add a ValidationSummary with the ValidationGroup and ShowMessageBox=true Check form1 runat= server > lblNameRequired runat= server Text= *Name: > txtNameRequired runat= server ValidationGroup= Validation > RequiredFieldValidatorName runat= server ControlToValidate= txtNameRequired Display= None ErrorMessage= NameisRequired ValidationGroup= Validation > lblGenderRequired runat= server Text= *Gender: > ddlGenderRequired runat= server ValidationGroup= Validation > True Value= -1 >--Select-- 0 >Male 1 >Female CompareValidatorGender runat= server ControlToValidate= ddlGenderRequired Display= None ErrorMessage= GenderisRequired Operator= NotEqual ValidationGroup= Validation ValueToCompare= -1 > lblValidation runat= server Text= Fieldsmarkedwith*arerequired > btnValidate runat= server Text= ValidateInput ValidationGroup= Validation /> ValidationSummary1 runat= server ShowMessageBox= True ShowSummary= False ValidationGroup= Validation />