setting query string in redirecttoaction in asp.net mvc

Question

I have to do a `redirecttoaction` call in asp.net mvc view with varying params, extracted from the referrer page of the view (the status of a grid). I have (in an hidden field) the content of the query string (sometimes empty, sometimes with 2 parameters and so on), so I have problems to create the route values array. Are there some helpers, that help me to convert a query string a route values array? Something like: ``` string querystring ="sortdir=asc&pag=5"; return RedirectToAction( "Index", ConvertToRouteArray(querystring)); ```

Accepted Answer

To create a generic solution convert your querystring to a Dictionary and at the dictionary to the RouteValueDictionary.

```
var parsed = HttpUtility.ParseQueryString(temp); 
Dictionary<string,object> querystringDic = parsed.AllKeys
    .ToDictionary(k => k, k => (object)parsed[k]);

return RedirectToAction("Index", new RouteValueDictionary(querystringDic)); 
```

setting query string in redirecttoaction in asp.net mvc

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