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Old July 30th, 2008, 05:21 AM
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Default using JavaScript var in C# ASP.net


can any one tell me that how can I use javascript var in ASP.net C# .

Old July 30th, 2008, 01:49 PM
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You can't. Period.

That's not how client/server programming works.

The variable in JavaScript is in the browser, which is in some computer in an airplane flying over the Pacific Ocean, say.

The C# code is on the server, sitting on the ground in London, say.

There is no way for the C# code to "reach out" and grab the value of that JS variable and use it.

The only way to get the value from the browser to the server is to *SEND* it there. With ASP.NET programming, that probably means copying the variable's value into a HIDDEN FORM FIELD and then submitting the form. Then the C# code can get the value from the submitted form.

You need to read up on the fundamentals of HTTP and client/server programming. Wish I could point you to a good book, but I can't think of the right one, off hand.
Old July 30th, 2008, 01:53 PM
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You may want to take a look here:


Although my post discusses classic ASP, the general principle holds for ASP.NET as well.



Imar Spaanjaars
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