How to send a dictionary parameter to a URL.Action() in asp.net MVC3 -


say have action method.......

public actionresult displayxml(int viewid, dictionary<string,string> parameter, string dataformat )         {             string xml = "";             return content(xml, "text/xml");         }

and in view did.......

<iframe title="xml" class="resultdisplay"          src = "@url.action("displayxml", "outputdata", new {viewid = model.viewid, parameter = model.parameter, dataformat = model.dataformat })"> </iframe>

here parameter dictionary , getting null. how can send it?????

you're trying pass , arbitrary dictionary parameter in querystring?

its pretty unusual requirement need serialize contents of dictionary query string parameter , again. when generating querystring parameters, mvc call .tostring() on values, , dictionary<,> object uses default implementation (which returns it's type)

since requirement uncommon, there's nothing built in this.. can quite serialize dictionary string (perhaps json?) , then, change parameter variable in action string. you'll have deserialize value dictionary after that.

before provide more of example, want check you're absolutely sure want do

update:

here way of doing (requires json.net):

    public actionresult displayxml(int viewid, string parameterjson, string dataformat )     {         var parameter = jsonconvert.deserializeobject<dictionary<string,string>>(parameterjson);          string xml = "";         return content(xml, "text/xml");     }

and use:

<iframe title="xml" class="resultdisplay"          src = "@url.action("displayxml", "outputdata", new {viewid = model.viewid, parameterjson = newtonsoft.json.jsonconvert.serializeobject(model.parameter), dataformat = model.dataformat })"> </iframe>

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