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Implementing Validation Controls
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Implementing Validation Controls
http://www.beansoftware.com/ASP.NET-Tutorials/Validation-Controls.aspx
Validation controls are used to validate the user's input. The validation controls can be attached to input controls to check the values that are entered by the user. You can use a validation control to perform tasks, such as checking whether a user has entered any value for the required filed, testing the entered value against a specific value or pattern of characters, and verifying that the entered value lies within a range. For example, you can use validation controls to check whether a user has entered a password, whether the enterer password contains a minimum of four characters and a maximum of twenty characters, and whether the entered password is a combination of letters and numbers.
ASP.NET > Tips and Tutorials
Jul 1, 2008
Richard Bean
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