Override the default layout behavior of the Panel element and create custom layout elements that are derived from Panel. : Panel « Windows Presentation Foundation « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Windows Presentation Foundation
3. Panel

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Shapes;
using System.Windows.Media;
using System.Threading;
        public class PlotPanel : Panel
        {
            public PlotPanel(): base()
            {
            }
            protected override Size MeasureOverride(Size availableSize)
            {
                Size childSize = availableSize;
                foreach (UIElement child in InternalChildren)
                {
                    child.Measure(childSize);
                }
                return availableSize;
            }
            protected override Size ArrangeOverride(Size finalSize)
            {
                foreach (UIElement child in InternalChildren)
                {
                    double x = 50;
                    double y = 50;

                    child.Arrange(new Rect(new Point(x, y), child.DesiredSize));
                }
                return finalSize; 
            }
        }
  public class app : System.Windows.Application
  {
        PlotPanel plot1 = new PlotPanel();
        Window mainWindow = new System.Windows.Window();
        Rectangle rect1 = new Rectangle();

        protected override void OnStartup (StartupEventArgs e)
    {
        base.OnStartup (e);
            plot1.Background = Brushes.White;
            rect1.Fill = Brushes.CornflowerBlue;
            rect1.Width = 200;
            rect1.Height = 200;
            mainWindow.Content = plot1;
            plot1.Children.Add(rect1);
            mainWindow.Title = "Custom Panel Sample";
            mainWindow.Show();
    }
    [System.STAThread()]
    private static void Main()
    {
      app app = new app();
      app.Run();
    }
  }

24.55.Panel
	24.55.1.	Add a control to a Panel
	24.55.2.	Remove Control from a Panel
	24.55.3.	Insert Button to a Panel
	24.55.4.	Add child control
	24.55.5.	Show Index of Controls
	24.55.6.	Clear Controls
	24.55.7.	Contains Element?
	24.55.8.	UIElement Count
	24.55.9.	Get Item At Index Position [0]
	24.55.10.	Panel is setting the data context to the scrollbar object
	24.55.11.	Find the index number of a newly added element within a panel, using the IndexOf method
	24.55.12.	Insert to a Panel by index
	24.55.13.	Get all children from a Panel
	24.55.14.	Search for an element by using Panel.FindName()
	24.55.15.	Panel.ZIndex
	24.55.16.	Without Panel.ZIndex
	24.55.17.	Override the default layout behavior of the Panel element and create custom layout elements that are derived from Panel.