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In this article we intend to present only a number of simple examples to get you started, covering the basic form elements.

Before you ask, and someone always does, these examples will currently work in the following browsers: Safari 5, Chrome 6, Opera 9, Firefox 4 Beta and the i Phone/i Pad.

For developer point of view serve side is preferable because it will not fail, it is not dependent on browser and scripting language. NET validation, which will ensure client, and server validation. When the value of the Causes Validation property is set to true, you can also use the Validation Group property to specify the name of the validation group for which the Button control causes validation. Compare Validator Control The Compare Validator control allows you to make comparison to compare data entered in an input control with a constant value or a value in a different control.

Hopefully these behaviours will converge in future releases.

User's input must always be validated before sending across different layers of the application.

Validation controls are used to: Client side validation is good but we have to be dependent on browser and scripting language support. NET Web pages for user input is to be able to check that the information users enter is valid. NET provides a set of validation controls that provide an easy-to-use but powerful way to check for errors and, if necessary, display messages to the user. NETUsually, Validation is invoked in response to user actions like clicking submit button or entering data.

There are two main reasons that Web caches are used: If you examine the preferences dialog of any modern Web browser (like Internet Explorer, Safari or Mozilla), you’ll probably notice a “cache” setting.

This lets you set aside a section of your computer’s hard disk to store representations that you’ve seen, just for you.

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