protected virtual void HandlePreviewTabKey(KeyEventArgs e)
{
if (e.Handled)
{
return;
}
var dataGridControl = this.ParentDataGridControl;
if (dataGridControl == null)
{
return;
}
var dataGridContext = dataGridControl.CurrentContext;
if (dataGridContext == null)
{
return;
}
var container = dataGridContext.GetContainerFromItem(dataGridContext.InternalCurrentItem);
if (container == null)
{
return;
}
var tabbingMode = KeyboardNavigation.GetTabNavigation(container);
if (tabbingMode == KeyboardNavigationMode.None)
{
return;
}
if ((Keyboard.Modifiers == ModifierKeys.None) || (Keyboard.Modifiers == ModifierKeys.Shift))
{
DataGridItemsHost.BringIntoViewKeyboardFocusedElement();
//Force the "inline" relayout of the panel
//This has no effect if the panel do not have to be updated.
this.UpdateLayout();
}
}
protected virtual void HandlePreviewDownKey(KeyEventArgs e)
{
DataGridItemsHost.BringIntoViewKeyboardFocusedElement();
this.UpdateLayout();
}