WPF C# Tutorial

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:WpfApplication1="clr-namespace:WpfApplication1;assembly="
    Title="WPF" Height="200" Width="400" >
    
        
            
            
        
    

    
        
            
        

        
            
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                In View
                Out of View
            

        
    


//File:Window.xaml.cs
using System.Windows;
using System;
using System.Windows;
using System.Windows.Controls;
namespace WpfApplication1
{
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }
    }
    public class ScrollableCanvasControl : Canvas
    {
        static ScrollableCanvasControl()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(ScrollableCanvasControl), new FrameworkPropertyMetadata(typeof(ScrollableCanvasControl)));
        }
        protected override Size MeasureOverride(Size constraint)
        {
            double bottomMost = 0d;
            double rightMost = 0d;
            foreach(object obj in Children)
            {
                FrameworkElement child = obj as FrameworkElement;
                if(child != null)
                {
                    child.Measure(constraint);
                    bottomMost = Math.Max(bottomMost,GetTop(child) +child.DesiredSize.Height);
                    rightMost = Math.Max(rightMost, GetLeft(child) + child.DesiredSize.Width);
                }
            }
            return new Size(rightMost, bottomMost);
        }
    }
}