NotImplementedException was unhandled by user code

2 posts, 0 answers
  1. Claudine
    Claudine avatar
    1 posts
    Member since:
    Jul 2012

    Posted 09 Apr 2013 Link to this post


    I'm trying out the radSpreadSheet (started by simply copy-pasting the XAML at and stumbled on the above error message when trying to handle some events (I was trying to see what they did):

    • radSpreadsheet.Tap event
    • radSpreadsheet.ManipulationCompleted event
    • radSpreadsheet.ManipulationStarted event

    I received these errors by opening the view in which the radSpreadSheet was contained. Implementing events like

    • radSpreadsheet.TextInputUpdate
    • radSpreadsheet.TextInput

    does not cause this error.

    Am I missing some reference or anything like that? I have the following added (also from the above link):

    • System.Windows.Controls
    • Telerik.Windows.Controls.dll
    • Telerik.Windows.Controls.Spreadsheet.dll
    • Telerik.Windows.Documents.Core.dll
    • Telerik.Windows.Documents.SpreadSheet.dll
    • Telerik.Windows.Maths.dll

    I was actually trying to find an event like CellEditedEvent or something  similar. Is this present in the radSpreadSheet?
    I'm using Telerik Silverlight Controls 2013 Q1, version 2013.1.403.1050.


  2. Andrew
    Andrew avatar
    140 posts

    Posted 10 Apr 2013 Link to this post

    Hi Claudine,

    The assemblies you included in your project are the correct ones.

    The issue you are facing resides in the fact that this event belongs to the UIElement class and it is not implemented by Microsoft. This means that even if you attach to Grid's (also a successor of UIElement) Tap event, you will get the same error. We are unaware of the reason why Microsoft decided not to implement it. Actually, it has an attribute set to it which prevents it from displaying in the IntelliSense - [EditorBrowsable(1)] which means it is not supposed to be used. This is true for all of the three events you mentioned.

    I hope the provided information is helpful.

    Kind regards,
    the Telerik team

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