Passing a Dictionary<string, string> to a controller RSS

• • Reply
  

  tftr_si

  Member

  713 Points

  220 Posts

  Passing a Dictionary<string, string> to a controller

  Jun 02, 2011 01:39 PM|LINK

  Hi guys and gals,

  I have a partial view which is being called (async) from jquery. I loop through some data and builds a dictionary I delare at the top of the partial view (so one dictionary per call to the partial view).

  Dictionary<string, string> vals = new Dictionary<string, string>();

  Each time round the loop i'm adding an item to the 'vals' dictionary:

  vals.Add(item.my_field.ToString(), item.my_other_field.ToString());

  Then outside the loop, I call my action passing the dictionary:

  @Html.Action("MyActionName", new { vals = @vals })

  The only problem is on the action, I get a blank dictionary come through?!

  public FileContentResult MyActionName(Dictionary<string, string> vals)

  Anyone know why!? I'm stumped.

  • Edited by tftr_si on Jun 02, 2011 01:47 PM
• • Reply
  

  tftr_si

  Member

  713 Points

  220 Posts

  Re: Passing a Dictionary<string, string> to a controller

  Jun 02, 2011 03:35 PM|LINK

  Hi all,

  Ok, I realised what my prob was. I now call the action which returns an image (as a FileContentResult) to sit in an image tag.

  <img alt="" src="@{Html.RenderAction("MyActionName", vals);}" />

  The only problem is I'm doing this via a JQuery ajax call so there are many requests to it.

  Each time i run the page, I get the Exception:

  Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'.

  with the inner exception:

  OutputStream is not available when a custom TextWriter is used

• • Reply
  

  francesco ab...

  All-Star

  20944 Points

  3286 Posts

  Re: Passing a Dictionary<string, string> to a controller

  Jun 02, 2011 09:11 PM|LINK

  Renderaction accept a RouteValueDisctionary not a Dictionary<...>

  Francesco Abbruzzese http://www.dotnet-programming.com/
  Mvc Controls Toolkit | Data Moving Plug-in Videos
  • Marked as answer by Forest Cheng - MSFT on Jun 09, 2011 01:23 AM