jquery, c# and server side data validation

Ive been using jquery to post data and was wondering how best to perform serverside validation on the data. I check the values clientside but know its good practice to also check serverside. Ive seached online but cant really find开发者_高级运维 any examples.

Thanks in advance

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There are many ways of doing validation server side, but to make it easy for you you could use an existing library.

the Microsoft Enterprise Library 5.0 offers a bunch of features that you can use to implement common practices. Validation is one of them. Microsoft Enterprise Library is a collection of application blocks designed to assist developers with common enterprise development challenges.

The Enterprise Library Validation Application Block provides useful features that allow developers to implement structured and easy-to-maintain validation scenarios in their applications.

a great sample is found at Using Validation Block Attributes to Define Validation Rule Sets

more here: http://msdn.microsoft.com/en-us/library/ff664356(v=PandP.50).aspx

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You can either do it manually (ie, if (model.Value != null)), or via data annotations

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Check out ASP.NET server-side validation.