Silverlight DataGrid not refreshing as expected

Silverlight DataGrid not refreshing as expected

Old forum URL: forums.lhotka.net/forums/t/6953.aspx

Jack posted on Friday, May 15, 2009

I am using the standard Silverlight Datagrid bound to a EBL and I am updating multiple databound properties for my BO after a selection changed event from a combo box which ultimately triggers PropertyChanged but I'm not getting the data refreshed with out a call to the DataProvider.Rebind().

So:

Change lookup value in combobox
- ComboBox_SelectionChanged
- trigger DataModifiedEvent(comboxBox.SelectedItem)

- OnDataModifiedEvent( selectedItem)
   - compare values and call BO.UpdateData(someID)
   //DataProvider.Rebind()

BO.UpdateSomeDataMethod(new Id)
-   BO.SetProperty('abc', 123)
-   BO.SetProperty('def', 123)

Without the DataProvider.Rebind() in place my data doesn't refresh on the screen.  It is there, I can tab around and it will show up once I go into Editmode in a cell.

Anyhow I'm a little unclear why I have to do the Rebind()?  I would have thought that the the grid would have gotten the PropertyChangedNotification and done it it's self...

thanks

jack

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