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ASP.NET MVC 2.0.... generate query URL parameters from Model?

Answer 1

+1 A:

What you are describing sounds like a simple if tree:

StringBuilder myQueryString = new StringBuilder();

if (parameter1 != null)
    myQueryString.Append("&Parameter1=" + parameter1.ToString());

if (parameter2 != null)
    myQueryString.Append("&Parameter2=" + parameter2.ToString());

Assuming at least one parameter is already in the querystring, of course.

Robert Harvey 2010-03-08 16:36:17

Not really right.... because this is server side.The main question probably goes around the client side - the generation of the action link. How do I do that best - after all, i need to check every possible field whether it is the default value or not, then generate the parameter string. QUITE a lot of work, would you not say? Is there no support for that in the ASP.NET MVC framework?

TomTom 2010-03-08 17:24:31

Being a client-side problem, you can write Javascript or jQuery to solve it, or you could post your values back to a controller method, create the desired Url, and then forward the page to your generated Url, displaying the results of the search. The latter approach might be easier, especially if you're not keen on writing Javascript or jQuery.

Robert Harvey 2010-03-09 00:05:10

Ok, so MVC 2.0 has no internal provision (a helper method) for doing the same and basically generating a client side call for this? That would close it - and mark this as answer, sadly ;)

TomTom 2010-03-09 07:19:37

A helper method is not going to work, because it will already have executed before the user has a chance to fill in the search fields. I would simply use two controller methods. The first controller method will handle the post and generate the URL, and the second will take in the parameter values and display the result. Don't be sad; it's a good approach. :)

Robert Harvey 2010-03-09 14:48:50

Well, I thought more of a helper method that emits the proper script on the serve rto generate the URL, saving me that redirect. Will go that approach, though - post back, then generate a redirect to the URL with all parameters.

TomTom 2010-03-10 11:04:45

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ASP.NET MVC 2.0.... generate query URL parameters from Model?

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