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Explain the validation controls. How many validation controls in ASP.NET 4.0?

Sumit Kesarwani206201-Sep-2014
asp.netasp.net 
Updated on 23-Sep-2020
Sumit Kesarwani

Sumit Kesarwani

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Sumit Kesarwani

Sumit Kesarwani

01-Sep-2014

Validation controls are responsible to validate the data of an input control. Whenever you provide any input to an application, it performs the validation and displays an error message to user, in case the validation fails.

ASP.NET 4.0 contains the following six types of validation controls:

  • CompareValidator - Performs a comparison between the values contained in two controls.
  • CustomValidator - Writes your own method to perform extra validation.
  • RangeValidator- Checks value according to the range of value.
  • RegularExpressionValidator - Ensures that input is according to the specified pattern or not.
  • RequiredFieldValidator - Checks either a control is empty or not.
  • ValidationSummary - Displays a summary of all validation error in a central location.

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