<Window x:Class="WpfApplication1.Window1" 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" > <Window.Resources> <Style TargetType="Button"> <Setter Property="Width" Value="Auto" /> <Setter Property="Height" Value="24" /> </Style> </Window.Resources> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="0.5*"/> <ColumnDefinition Width="0.5*"/> </Grid.ColumnDefinitions> <ScrollViewer Grid.Column="0"> <Canvas> <Button Canvas.Top="80" Canvas.Left="80">In View</Button> <Button Canvas.Top="300" Canvas.Left="80">Out of view</Button> </Canvas> </ScrollViewer> <ScrollViewer Grid.Column="1"> <WpfApplication1:ScrollableCanvasControl> <Button Canvas.Top="80" Canvas.Left="80">In View</Button> <Button Canvas.Top="300" Canvas.Left="80">Out of View</Button> </WpfApplication1:ScrollableCanvasControl> </ScrollViewer> </Grid> </Window> //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); } } }