Asp net validating user input with c roissy blog dating
The validation control classes are inherited from the Base Validator class hence they inherit its properties and methods.
Therefore, it would help to take a look at the properties and the methods of this base class, which are common for all the validation controls: The Regular Expression Validator allows validating the input text by matching against a pattern of a regular expression.
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Regular Expression Validator Control A regular expression is a powerful pattern matching language that can be used to identify simple and complex characters sequence that would otherwise require writing code to perform.
Using Regular Expression Validator server control, you can check a user's input based on a pattern that you define using a regular expression. These expressions can be phone number, email address, zip code and many more. Simply set the Validation Expression property to any type of expression you want and it will validate it.
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The regular expression is set in the Validation Expression property.