private void SearchTextBox_TextChanged(object sender, RoutedEventArgs e)
        {
            TextBox TB = (TextBox)sender;

            foreach (DataGridColumn DGC in this.Columns)
            {
                for (int ind = 0; ind < this.Items.Count; ind++)
                {
                    FrameworkElement FE = DGC.GetCellContent(this.Items[ind]);
                    if (FE != null && FE.GetType().Name == "TextBlock")
                    {
                        TextBlock TX = (TextBlock)FE;
                        if (TX != null)
                        {
                            if (!string.IsNullOrEmpty(TB.Text) && TX.Text.ToUpper().Contains(TB.Text.ToUpper()))
                            {
                                System.Windows.Media.BrushConverter BC = new System.Windows.Media.BrushConverter();
                                TX.Background = this.SearchedValueBackGroundColor;
                                //TX.Background =  System.Windows.Media.Brushes.Orange;
                                TX.Foreground = System.Windows.Media.Brushes.YellowGreen;
                            }
                            else
                            {
                                TX.Background = System.Windows.Media.Brushes.White;
                                TX.Foreground = System.Windows.Media.Brushes.Black;
                            }
                        }
                    }
                }
            }
        }