MVC3 Razor - @Html.Partial getting called but if it renders is based upon location RSS

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  jeff00seattl...

  Member

  44 Points

  112 Posts

  MVC3 Razor - @Html.Partial getting called but if it renders is based upon location

  May 08, 2012 08:46 PM|LINK

  I have a Partial that I know that it is getting called and validated that it is receiving expected ViewData, but it does not always render.

  Here is the partial:

  @using WebUI.Domain.Digital
  @if (null != ViewData["SelectedRow"])
  {
      CardDigital cardDigital = (CardDigital)ViewData["SelectedRow"];
      string location = (string)ViewData["Location"];
  
      <fieldset>
          <legend>Digital Card (@location)</legend>
          <div class="display-label">
              FirstName</div>
          <div class="display-field">
              @cardDigital.FirstName
          </div>
          <div class="display-label">
              LastName</div>
          <div class="display-field">
              @cardDigital.LastName
          </div>
      </fieldset>
  }

  And here is the View code calling the Partial:

  <div>
  	<div>
  ...
  	   @if (grid.HasSelection)
  		{
  			ViewData["SelectedRow"] = new CardDigital((CardDigital)grid.SelectedRow.Value);
  			ViewData["Location"] = "A";
  		}
  		@Html.Partial("Partial/_DigitalPreview");
  	</div>
  </div>
  <div>
  	@{ ViewData["Location"] = "B"; }
  	@Html.Partial("Partial/_DigitalPreview")
  </div>

  Notice that there are two locations "A" and "B". Both @Html.Partial receive the same ViewData["SelectedRow"], but only Location "A" is rendering. I validated that @Html.Partial at Location "B" is getting the data, but it just is not presenting it.

  What could be the issue?

  Thanks

  
   

  Thanks
  
  Jeff in Seattle
  • Edited by jeff00seattle on May 08, 2012 08:47 PM
  • Edited by jeff00seattle on May 08, 2012 08:49 PM
  • Edited by jeff00seattle on May 09, 2012 10:41 PM
• • Reply
  

  gopakumar.r

  Participant

  959 Points

  193 Posts

  Re: MVC3 Razor - @Html.Partial getting called but if it renders is based upon location

  May 10, 2012 12:43 PM|LINK

  What i am thinking is ViewData might be different in the second time you call the partial view. First time you create a view data object and pass it to the partial view and try passing the same view data to the partial view, it is getting lost. 

  Simple test to verify this

  In you partial view just print "ViewData.GetHashCode()" and see if the hash code is the same when inside the partial view while render at location A and B

  Cheers,
  Gopakumar
  
  | Please click “Mark as Answer” on the post(s) if it helps |
  • Marked as answer by Young Yang - MSFT on May 17, 2012 09:41 AM