Please bear with me - I'm learning how to use the datagrid as a trial user and have been searching the forums and docs for hours to no avail...

 I have a situation where if the user selects a certain item in a combobox outside of the grid, the grid should not allow new items to be added, but should still allow changes to items in it.  How can I do this in VB? 

I have tried to hide the insertion row, but the only place I can get a reference to it is in the InsertionRowInitializing event, but that is raised after the user clicks in it, but I would like it to be hidden sooner than that.

I am using a DataGridCollectionViewSource bound to a custom collection of objects that inherits the IBindingList interface.

Thanks,

Marcus

Hi Marcus.

You can create insertion row programmatically and get the reference to insertion row in Loaded event ("this" is a descendant of Xceed GridControl):

private InsertionRow insertionRow;

//In constructor:

this.View = new Xceed.Wpf.DataGrid.Views.TableView();

this.View.UseDefaultHeadersFooters = false;

// Add the column manager row
DataTemplate columnManagerRowTemplate = new DataTemplate();
columnManagerRowTemplate.VisualTree = new FrameworkElementFactory(typeof(ColumnManagerRow));
this.View.FixedHeaders.Add(columnManagerRowTemplate);

// Add the insertion row
DataTemplate insertionRowTemplate = new DataTemplate();
insertionRowTemplate.DataType = typeof(InsertionRow);
insertionRowTemplate.VisualTree = new FrameworkElementFactory(typeof(InsertionRow));
insertionRowTemplate.VisualTree.AddHandler(InsertionRow.LoadedEvent, new RoutedEventHandler(InsertionRowLoaded));
this.View.FixedHeaders.Add(insertionRowTemplate);

then:

private void InsertionRowLoaded(object sender, RoutedEventArgs e)
{
    if (this.insertionRow != sender)
    {
        this.insertionRow = sender as InsertionRow;
    }
}

Vit