public static DataGrid GetParentDatagrid(UIElement element)
{
UIElement childElement; //element from which to start the tree navigation, looking for a Datagrid parent
if (element is ComboBoxItem) //since ComboBoxItem.Parent is null, we must pass through ItemsPresenter in order to get the parent ComboBox
{
ItemsPresenter parentItemsPresenter = VisualTreeFinder.FindParentControl <ItemsPresenter>((element as ComboBoxItem));
ComboBox combobox = parentItemsPresenter.TemplatedParent as ComboBox;
childElement = combobox;
}
else
{
childElement = element;
}
DataGrid parentDatagrid = VisualTreeFinder.FindParentControl <DataGrid>(childElement); //let's see if the new focused element is inside a datagrid
return(parentDatagrid);
}
private static void GetTargetElement(TextBox sender, out DependencyObject element, out DependencyProperty dp)
{
element = null;
dp = null;
if (sender is TextBox)
{
if ((sender.Tag as string) == EDOConstants.TAG_UNDOABLE)
{
element = sender;
dp = TextBox.TextProperty;
}
else
{
ComboBox combo = VisualTreeFinder.FindParentControl <ComboBox>(sender);
if (combo != null && (combo.Tag as string) == EDOConstants.TAG_UNDOABLE)
{
element = combo;
dp = ComboBox.TextProperty;
}
}
}
}