The following statement:

if (__myGrid.IsBeingEdited) __myGrid.EndEdit();

Raises an exception:

"An attempt was made to edit an item that is not part of the specified context."

This occurs when I begin to type a value into the "New Row" of the grid, but then hit escape to cancel the new row, then hit the Close button on the form, which is wired to the above statement.

My workaround is to call EndEdit on every DataRow in the source DataTable.

I am using the 2.0 version of the DataGrid.

Full exception below.

Thanks!
Brian

{"An attempt was made to edit an item that is not part of the specified context."}
[System.InvalidOperationException]: {"An attempt was made to edit an item that is not part of the specified context."}
Data: {System.Collections.ListDictionaryInternal}
HelpLink: null
InnerException: null
Message: "An attempt was made to edit an item that is not part of the specified context."
Source: "Xceed.Wpf.DataGrid"
StackTrace: " at Xceed.Wpf.DataGrid.DataGridControl.EndEditHelper(DataGridContext dataGridContext)
at Xceed.Wpf.DataGrid.DataGridControl.EndEdit()
at OnTrackWPF2.TimeEntryForm2.OnClosing(Object sender, CancelEventArgs e) in C:\_BjS\Projects\OnTrack\OnTrackWPF2\TimeEntryForm2.xaml.cs:line 283"
TargetSite: {Void EndEditHelper(Xceed.Wpf.DataGrid.DataGridContext)}

Hi,

Were you editing an InsertionRow that belongs to a detail or from the "master" data?

If the InsertionRow was belonging to the "master" data, I'd like to have more details on your setup, as there seems to be a problem.

If you were indeed editing a "detail" InsertionRow, then the exception is normal and to be expected. The suggested usage would be to use the DataGridControl.CurrentContext.EndEdit() to ensure that the appropirate DataGridControl gets invoked.

---

Marc Laroche
Software Developer
Xceed Software Inc.

I don’t suffer from insanity, I enjoy every minute of it. - Unknown

I believe there's only master data involved, as there's only one grid, although I tried __workLogGrid.CurrentContext.EndEdit() and received the same error. I've copied more details on the setup below.

<b>Environment:</b> VS2008, + Resharper 4.0 Pre-Release (nightly builds).

<b>Grid binding method, which is called after the form is loaded:</b>
<color="#0000ff">
public</color> <color="#0000ff">void </color> SetWorkLogSource(<color="#2b91af">DataView </color><color="#0000ff">value</color>) {
_workLogSource = <color="#0000ff">new</color> <color="#2b91af"> DataGridCollectionViewSource</color> { Source = <color="#0000ff">value</color> };
__workLogGrid.SetBinding(<color="#2b91af">ItemsControl</color>.ItemsSourceProperty, <color="#0000ff">new</color> <color="#2b91af">Binding</color> { Source = _workLogSource });
}

<b>Grid markup:</b>
<color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">DataGridControl</color><color="#ff0000"> Margin</color><color="#0000ff">="21,162,21,20"</color> <color="#ff0000">x</color><color="#0000ff">:</color><color="#ff0000">Name</color><color="#0000ff">="__workLogGrid"</color> <color="#ff0000">AutoCreateColumns</color><color="#0000ff">="True"</color> <color="#ff0000"> HorizontalContentAlignment</color><color="#0000ff">="Stretch"</color> <color="#ff0000"> VerticalContentAlignment</color><color="#0000ff">="Top"</color> <color="#ff0000">SelectionMode</color><color="#0000ff">="Extended"</color> <color="#ff0000">NavigationBehavior</color><color="#0000ff">="RowOrCell"</color> <color="#ff0000"> CellEditorDisplayConditions</color><color="#0000ff">="None"</color> <color="#ff0000">EditTriggers</color><color="#0000ff">="BeginEditCommand, ClickOnCurrentCell, ActivationGesture"</color><color="#ff0000"> ItemScrollingBehavior</color><color="#0000ff">="Immediate"</color><color="#ff0000"> xcdg</color><color="#0000ff">:</color><color="#ff0000">GroupLevelIndicatorPane.ShowIndicators</color><color="#0000ff">="True"</color><color="#ff0000"> xcdg</color><color="#0000ff">:</color><color="#ff0000">GroupLevelIndicatorPane.ShowVerticalBorder</color><color="#0000ff">="True"></color>
color="#a31515"></color><color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">DataGridControl.Resources</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">Style</color><color="#ff0000"> x</color><color="#0000ff">:</color><color="#ff0000">Key</color><color="#0000ff">="{</color><color="#a31515">x</color><color="#0000ff">:</color><color="#a31515">Type</color><color="#ff0000"> xcdg</color><color="#0000ff">:</color><color="#ff0000">ScrollTip</color><color="#0000ff">}"</color><color="#ff0000"> TargetType</color><color="#0000ff">="{</color><color="#a31515">x</color><color="#0000ff">:</color><color="#a31515">Type</color><color="#ff0000"> xcdg</color><color="#0000ff">:</color><color="#ff0000">ScrollTip</color><color="#0000ff">}"></color>
<color="#0000ff"><</color><color="#a31515">Setter</color><color="#ff0000"> Property</color><color="#0000ff">="VerticalAlignment"</color><color="#ff0000"> Value</color><color="#0000ff">="Center" />
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">Setter</color><color="#ff0000"> Property</color><color="#0000ff">="HorizontalAlignment"</color><color="#ff0000"> Value</color><color="#0000ff">="Right" />
</color><color="#a31515"></color><color="#0000ff"></</color><color="#a31515">Style</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"></</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">DataGridControl.Resources</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">DataGridControl.View</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">TableView</color><color="#ff0000"> UseDefaultHeadersFooters</color><color="#0000ff">="False"</color><color="#ff0000"> ShowFixedColumnSplitter</color><color="#0000ff">="False">
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">TableView.Theme</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">AeroNormalColorTheme</color><color="#0000ff"> />
</color><color="#a31515"></color><color="#0000ff"></</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">TableView.Theme</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">TableView.FixedFooters</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">DataTemplate</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"><</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">InsertionRow</color><color="#0000ff"> />
</color><color="#a31515"></color><color="#0000ff"></</color><color="#a31515">DataTemplate</color><color="#0000ff">>
</color><color="#a31515"></color><color="#0000ff"></</color><color="#a31515">xcdg</color><color="#0000ff">:</color><color="#a31515">TableView.F

Thank you, we will take a look into this and report on our findings in this thread.

---

Marc Laroche
Software Developer
Xceed Software Inc.

I don’t suffer from insanity, I enjoy every minute of it. - Unknown

Hello,

I just wanted to add that I am having this same issue when calling grid.EndEdit() while editing the insertion row.

Thanks,
Dan

Dan:

Hello,

I just wanted to add that I am having this same issue when calling grid.EndEdit() while editing the insertion row.

Thanks,
Dan

Oh my... I'm having the same problem. Did anyone find a solution? 

*bump*

---

Kiwi wannabe

My current solution:

 

Get the InsertionRow from the Loaded-event:

private InsertionRow m_InsertionRow;
private void InsertionRowLoaded(object sender, RoutedEventArgs args)
{
    m_InsertionRow = sender as CustomInsertionRow;
}

 

Call EndEdit separately on the InsertionRow:

            if (m_InsertionRow != null && m_InsertionRow.IsBeingEdited)
            {
                try
                {
                    m_InsertionRow.EndEdit();
                }
                catch (DataGridException)
                {
                    return;
                }
            } 

---

Kiwi wannabe