C# WPF Need help with code...

   private void button1_Click(object sender, RoutedEventArgs e)
       {
           DateTime dt1 = Convert.ToDateTime(label1.Content + "/" + label2.Content + "/" + label5.Content);
           DateTime dt2 = Convert.ToDateTime(label3.Content + "/" + label4.Content + "/" + label6.Content);
           TimeSpan ts =  dt2-dt1 ;
           int days = ts.Days;
           label14.Content = ts.Days;
           for (int i = 0; i < 50; i++)
           {
               TextBlock TXB = new TextBlock();
               TXB.Background = new LinearGradientBrush(Colors.Red, Colors.LightCyan, new Point(0, 0), new Point(1, 1));
               TXB.Text =  i.ToString();
               TXB.HorizontalAlignment = HorizontalAlignment.Left; TXB.VerticalAlignment = VerticalAlignment.Stretch;
               TXB.Width = 30;
               TXB.Name = "T" + i.ToString();
               if (TXB.Margin == TXB.Margin)
               {
                   TXB.Margin = new Thickness(TXB.Margin.Left,  0, TXB.Margin.Right + 20, 0);

               }
this.grid2.Children.Add(TXB);

           }