Explain Validation Controls in ASP.NET?

We will discuss the validation controls available in asp.net and we will see some important properties of each validators.
There are 6 validation controls in asp.net. These are
(1)-Requiredfield validator
(2)-Range validator
(3)-Compair validator
(4)-RegularExpression validator
(5)-Validation Summary
(6)-Custom validator

(1)-Requiredfield validator:
This validator will not allow textbox blank.
Properties:
Control to validate
Error message

(2)-Range validator:
Validate the textbox within a perticular range of values.
Properties:
Control to validate
Min value
Max value
Error Message

(3)-Compare validator:
Use this control to Compare the values with in different textboxes
Properties:
Control to validate
Control to Compare
type
Operator
Error Message

(4)-RegularExpression validator:
Validate textbox data based on a perticular pattern or expression then we require regular expression validator.
For ex pattern like
/d{5}-> Number will be 5 digits.
Properties:
Control to validate
validation Expression
Error message

(5)-Validation Summary:
It displays summary of all current validation errors on an asp.net page.
Properties:
Display mode
Show Messagebox
Show Summary

(6)-Custom validator:
It is used to define some user defined validation or some custom validation.