/// <summary>
/// Toggle CheckBox of a row in DataGrid
/// </summary>
/// <param name="row">the DataGridRow where CheckBox shall be toggled</param>
private void ToggleRowCheckBox(DataGridRow row)
{
// get CheckBox from CheckBoxColumn (name == null)
CheckBox checkBox = row.FindChild <CheckBox>(null);
// toggle CheckBox
checkBox.IsChecked ^= true;
}