Javascript Validation vs C# validation.

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Dear Friends,

I have seen most of peolpe using C# validation instead of javascript.
Can any one educate me on this. Why C# is prefered more or is javascript much more enough.

Regards,
AP

Posted 4-Jun-12 19:06pm

Arunprasath Natarajan

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Rahul Rajat Singh · Accepted Answer · 2012-06-04T19:11:00

IMHO, Server side validation i.e. C# validation is a must have. But along with these the javascript validations should also be used.

most of the casual users use the web sites and for them the javascript validation will work. the benefit of having this in place is faster user response. the delay due to post-back is avoided and the user gets immediate feedback.

it is only when some user either is using the site with javascript turned of or someone is deliberately trying to bypass the javascript when server side validations in C# will be executed.

Having javascript validation is ensuring better response and usability of website where as having C# validations is ensuring security too. so we can say that.

1. Javascript validation is optional but C# validation is not.
2. We should try to use javascript validation whenever we can along with C# one as this will increase usability and decrease server load.