Datagrid no longer in Edit-mode after view.commitEdit/cancelEdit

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I have a combobBox and a datagrid (dgVadl) that is bound to the selectedItem in the combobox. I also have an UNDO-button to restore the last values in the datagrid.
In the UNDO-button I have:

C#

_Adapter.RejectChanges();
 dgVadl.Items.Refresh();

This works fine if de datagrid contains no errors. If it does contain errors the grid is in edit-mode and then you get the exception: " 'Refresh' is not allowed during an AddNew or EditItem transaction". So I change my code into:

C#

if (view.CanCancelEdit)
     view.CancelEdit();
 else
     view.CommitEdit();
 _Adapter.RejectChanges();
 dgVadl.Items.Refresh();

(BTW: view.canCancelEdit is always false)
The problem now is that de datagrid is no longer in editMode.
To get it in edit-mode again I first have to select an other value in de combobox and then go back again to the first selected item.
Is there another way to get back to editting again?

Thans in advance

Posted 19-Jun-11 2:29am

afva

Updated 19-Jun-11 2:51am

v2

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2 solutions

Solution 1

Try to remove the row editing event handler and do undo operation and Then add the event handler back.I have not tried out the code.Just an assumption that it may work.This thread below may give you some idea.

http://social.msdn.microsoft.com/Forums/en/wpf/thread/8898cacc-d72e-4be6-9045-ea5206c1ebb2[^]

Posted 20-Jun-11 7:51am

Anupama Roy

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afva · Accepted Answer · 2011-06-20T23:18:00

Thanks for your answer, but that is not a solution. The "RowEditEnding" never fires in this case.

The problem was that datagrid.HasRowValidation (or datagrid.HasCellValidation depending on my validationhandling) the value 'true' kept. Even after the refresh(), when no more errors existed.
The "OnCanExecuteBeginEdit()" checks for this value and returns: canExecute = false;

I do not know how to solve this.
I now use the Microsoft datagrid and the error no longer exists, so I guess it is a bug.

Thanks anyway,