Asp. NET validation server control

Verify that the server control is used to authenticate user input.

Validating server controls
Verify that the server control is used to validate the input control of the data. If the data does not pass validation, it displays the error message to the consumer.

Syntax to create a validation server control is:

<asp:control_name id= "some_id" runat= "Server"/>
Validation of server-controlled descriptions CompareValidator The value of an input control of comparative value, Another type of input control or fixed value CustomValidator allows you to write a method to handle the value of validation entering RangeValidator check that the value entered by the user is between two values RegularExpressionValidator ensure the value of the input control game specified mode Requiredfi Eldvalidator made an input control required field ValidationSummary a report showing that all validation errors occurred on a Web page