PropertyGrid bind to Dictionary throw NotSupportedException on editor closing

[daihung]

Hi,

I am experiencing an issue with the PropertyGrid when binding to a Dictionary<int, object>. The binding works correctly, and I can see the keys and values. However, when I open the values collection and then click OK/Cancel, a NotSupportedException is thrown with the message: “Mutating a value collection derived from a dictionary is not allowed.”

Steps to Reproduce:

1. Bind a Dictionary<int, object> to the SelectedObject property.
2. Open the values collection in the PropertyGrid.
3. OK/Cancel the changes.

Thanks.

[XceedBoucherS]

Hi,

Thank you for reporting this.

If you have access to the code, could you try to replace the content of
internal void PersistChanges( IList sourceList )
from file Xceed.Wpf.Toolkit/CollectionControl/Implementation/CollectionControl.cs
with the content of the attached file ?
1784.txt

to see if it help?

Thank you