Vb net handles validating
The regular expression is set in the Validation Expression property.The following table summarizes the commonly used syntax constructs for regular expressions: The Custom Validator control allows writing application specific custom validation routines for both the client side and the server side validation.Super Validator also provides validation based on the Regular Expressions.
The server side validation routine should be written in any . The summary displays the values of the Error Message property of all validation controls that failed validation.Request validation is generally desirable and should be left enabled for defense in depth.It should NOT be used as your sole method of XSS protection, and does not guarantee to catch every type of invalid input.The client side validation is accomplished through the Client Validation Function property.
The client side validation routine should be written in a scripting language, such as Java Script or VBScript, which the browser can understand.The following two mutually inclusive properties list out the error message: Complex pages have different groups of information provided in different panels.