ASP.NET validation controls validate the user input data to ensure that useless, unauthenticated, or contradictory data don’t get stored. ASP.NET provides the following validation controls: RequiredFieldValidator. RangeValidator.
What is validator use?
Validators tell you where you have errors in your code. If your page isn’t displaying as expected, a validator might very well point you to the cause of the display problems. Also, an invalid code that may display fine in one document may show stopping errors in another because of the encompassing code.
What is custom validator in asp net?
How many types of validators are there in asp net?
ASP.Net provides various validation controls that validate the user data to ensure that the data entered by the user are satisfied with the condition. ASP.Net provides RequiredFieldValidator, RangeValidator, CompareValidator, RegularExpressionValidator, CustomValidator and ValidationSummary.
What is validation explain the different types of validator used in asp net?
ASP.NET provides a list of validator controls to validate user input.
Validation Controls in ASP.NET.
|RegularExpressionValidator||Ensures that the value of an input control matches a specified pattern|
|CustomValidator||Allows you to write a method to handle the validation of the value entered|
Why do we use custom validator?
Use the CustomValidator control to provide a user-defined validation function for an input control. The CustomValidator control is a separate control from the input control it validates, which allows you to control where the validation message is displayed. Validation controls always perform validation on the server.
What is client validation?
Client-side validation is an initial check and an important feature of good user experience; by catching invalid data on the client-side, the user can fix it straight away.
How many types of validators are there?
There are 4 main types of validation: Prospective Validation. Concurrent Validation. Retrospective Validation.