Posts Tagged ‘json’
ASP.NET JSON and ViewState
September 25th, 2012 | 
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I received the following question recently about my article “ASP.NET AJAX using JSON – Here’s how.”
If we update the value of a textbox or label via a JSON web service call – will the value of that textbox/label be written to the viewstate or whatever so that the server side code can see the new values that came from the JSON request?
The short answer is, “no, it will not update viewstate.” But I think it would be helpful to understand when this is important rather than just giving you a blanket answer.
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Mixing ASP.NET, jQuery and JSON
I received the following question last week:
I am building a web application… I have a form with asp.net server control textbox and dropdownlist…
how can I send this to the server without postback and send me back message if the process of updating the database is successful
jQuery, JSON, and ASP.NET
A few months ago, I demonstrated how to use ASP.NET’s JSON capabilities. Lately, I’ve been demonstrating how to use jQuery. Both use a considerable amount of JavaScript so if there is some way we could eliminate or reduce the amount of code we had to load, performance would naturally increase.
Fortunately, there is.
ASP.NET AJAX using JSON – Here’s how.
Last week I wrote a post about how simple JSON is. In it I explained the main differences between using JSON and using the update panel. I really started out thinking I’d get to how to write JSON code, but I ran out of space. Well, today, we get to the HOW.
All JSON really is, is the ability to have JavaScript code call a WebService for our data, and write it into the HTML on the client side. If you know anything about how to write a WebService, this should be rather trivial because your web service is going to look just like any other web service with the exception of an added attribute.
Using JSON in ASP.NET
If you’ve been avoiding using JSON in your ASP.NET application because you think it’s hard, you’re an idiot. I can say that, because I’ve been avoiding it for exactly that reason. I’ve been an idiot too. But no more! Using an UpdatePanel is still easier than JSON. But JSON is easy enough that you may decide to use it over the UpdatePanel under certain circumstances.
