ObservableCollection clear exception.

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When i clear the observable collection am getting an exception as "This type of CollectionView does not support changes to its SourceCollection from a thread different from the Dispatcher thread."

Posted 2-May-15 21:05pm

Navya Sri

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Abhinav S · Accepted Answer · 2015-05-02T21:29:00

Solution 1

You may be trying to clear the collection on background or another thread.
Your UI needs to be notified of a refresh and so this clear can only happen on the UI thread.

Try this Application.Current.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new Action(() => _observableCollection.Clear());

Posted 2-May-15 21:29pm

Abhinav S

Updated 2-May-15 21:30pm

v2

Comments

Navya Sri 3-May-15 3:39am

I have two datagrids when i am going to click on first datagrid row i should fill the 2nd grid with respective details. if i use the above dispatcher my data is not added to the 2nd grid.

Navya Sri 3-May-15 3:41am

same exception is thrown when i add to observablecollection.

gunnalahariom 6-Sep-21 3:04am

Thanks abhinav , it wrked for me, but i have to changes this every where while performing any modification to the collection.

ObservableCollection clear exception.

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ObservableCollection clear exception.

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