Asp. NET validation controls

in ASP. Validation controls are as follows:

validation type	The controls used	Description
Mandatory field Validation	RequiredFieldValidator	Make sure that the user does not skip an entry.
Compare validation	CompareValidator	Compares user input to a constant value or to a value of another control or a specific data type (using a comparison operator that is less than, equal to, or greater than).
Scope validation	RangeValidator	Checks whether the user's input is within the specified upper and lower bounds. You can check the range of number pairs, letter pairs, and date pairs.
Regular-expression validation	RegularExpressionValidator	Checks if the item matches the pattern defined by the regular expression. This type of validation enables you to examine a sequence of characters in a predictable sequence of characters, such as an e-mail address, phone number, postal code, and so on.
Custom validation	CustomValidator	Check user input with the validation logic you write yourself. This type of validation enables you to examine values that are derived at run time.
Validation summary	ValidationSummary	Displays a summary of validation errors for all validators on the page.

Asp. NET validation controls