c# razor url parameter from view

Question

Why does Request["parameterName"] returns null within the view? I know I can get it from the controller but I have to make a little check in the View. I am using ASP.NET MVC 3.

score 180 · Accepted Answer · edited May 23 '17 at 12:02

180

You can use the following:

Request.Params["paramName"]

See also: When do Request.Params and Request.Form differ?

edited May 23 '17 at 12:02

Community

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answered Apr 17 '12 at 06:38

Wouter Simons

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Nice! Worked! you have my +1! :) – SrAxi Oct 03 '14 at 11:29
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This only works for parameters which are after "?", not for route parameters. – Cosmin Nov 01 '17 at 10:32

score 42 · Answer 2 · edited May 23 '17 at 11:54

42

I've found the solution in this thread

@(ViewContext.RouteData.Values["parameterName"])

edited May 23 '17 at 11:54

Community

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answered Feb 20 '14 at 09:24

Daniel

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This will only work if the query string parameter is also a parameter on the action. – jaypeagi Jul 22 '14 at 10:12

score 10 · Answer 3 · edited Mar 25 '20 at 08:43

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@(ViewContext.RouteData.Values["parameterName"])

worked with ROUTE PARAM.

Request.Params["paramName"]

did not work with ROUTE PARAM.

edited Mar 25 '20 at 08:43

freedomn-m

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answered Sep 11 '17 at 23:56

Ravi Ram

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Jamie Dixon · Answer 4 · 2011-06-28T23:53:37.427

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If you're doing the check inside the View, put the value in the ViewBag.

In your controller:

ViewBag["parameterName"] = Request["parameterName"];

It's worth noting that the Request and Response properties are exposed by the Controller class. They have the same semantics as HttpRequest and HttpResponse.

edited Jun 28 '11 at 23:53

answered Jun 28 '11 at 23:41

Jamie Dixon

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yes but my question is whether I can get it directly from the View, without using the controller? – Shaokan Jun 28 '11 at 23:45
You've already stated that Request["parameterName"] returns null in your view. Your question seemed more about making a check in the View, which you can do using this solution. What's stopping you from wanting to use the ViewBag? – Jamie Dixon Jun 28 '11 at 23:48
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That's an habit, in general I try to avoid ViewBags in favor of Model. – Shaokan Jun 28 '11 at 23:58
Is this data part of the model though? From what you said, you simply want to check some condition in order to do something else? – Jamie Dixon Jun 28 '11 at 23:59
Either way, it seems odd that the values are different between view and controller - they should be referencing the same exact Request object. – eulerfx Jun 29 '11 at 00:08
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The Request object is a property of the Controller class. I may be mistaken, but I dont think the view has access to that property of the Controller class. – Jamie Dixon Jun 29 '11 at 00:09
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For those of you who get an exception "Cannot apply indexing with [] to an expression of type 'System.Dynamic.DynamicObject'", just replace ViewBag with ViewData (source:http://forums.asp.net/t/1800747.aspx/1) – Alexandra Aug 22 '12 at 04:57

score 0 · Answer 5 · answered Jul 27 '22 at 08:37

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@(HttpUtility.UrlDecode(Request.Query["parameterName"].FirstOrDefault()) ?? "")

answered Jul 27 '22 at 08:37

OrElse

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Your answer could be improved by adding more information on what the code does and how it helps the OP. – Tyler2P Jul 31 '22 at 08:47

c# razor url parameter from view

5 Answers5