I am annoyingly facing Web Control Rendering error after deploying SharePoint 2010 SP1 and Aug 2010 patch. I have created Custom Performance Point Filter as per Pps2010RefSample provided by Microsoft and created a custom rendered class (as filter.RendererClassName = typeof(CustomFilter).AssemblyQualifiedName;
) instead of MultiSelectTreeViewControl
.
In this class I simply override the Render method and added only one line:
output.Write("<input type='text'ID='myControlID' />");
But when I open the Dashboard webpage it throwing me following error:
An exception occurred while rendering a Web control. The following diagnostic information might help to determine the cause of this problem:
Microsoft.PerformancePoint.Scorecards.BpmException: There was a problem preparing the WebPart for display. PerformancePoint Services error code 20700.
How can I resolve the issue?