AJAX :: TabControl Inside FormView Throws Error In Design Time

Dec 9, 2010

I'm trying to use a Tab control with 5 tabs inside a form view, when I view my aspx page in Visual Studio 2008 it displays a error message stating "There was an error rendering the control. Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "AjaxControlToolkit.properties.Resources.resources" was coreectly embedded or linked into assembly ... " running the site just shows a blank page (as the control isn't rendered).

If I remove the tab control from within the ItemTemplate (or EditItemTemplate) and put it directly onto the page it works fine. Googling for the error suggests the references aren't correct, so I've reset the toolbox, and re-added the reference - this time referencing the file in my Bin folder (not the installation path of the Ajax Toolkit). Still it throws the same error. Finally I've stripped the code out into a page with the bare minimum (no code behind) and it still throws the same error. I'm sure I had this working previously. I'm using Visual Studio 2008 on Windows 7 and I'm using the 3.5 files from Codeplex (AjaxControlToolkit.Binary.NET35.zip) targetting .NET Framework 3.5.

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