private void ShowSearchCriteriaGrid()
{
DataLayoutGrid.ColumnDefinitions[0].Width = new GridLength(70, GridUnitType.Star);
DataLayoutGrid.ColumnDefinitions[1].Width = new GridLength(1, GridUnitType.Star);
DataLayoutGrid.ColumnDefinitions[2].Width = new GridLength(30, GridUnitType.Star);
SearchProgressGrid.Visibility = System.Windows.Visibility.Hidden;
SearchLayoutGrid.Visibility = System.Windows.Visibility.Visible;
// Return focus to the search textbox
txtSearch.Focus();
}