Canvas PreviewMouseDown action and MouseDown action : Canvas « Windows Presentation Foundation « C# / CSharp Tutorial

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

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="AddHandler" Height="300" Width="300">
  <Grid HorizontalAlignment="Center" VerticalAlignment="Center">
    <Button>

      <Grid>
        <Grid.ColumnDefinitions>
          <ColumnDefinition />
          <ColumnDefinition />
        </Grid.ColumnDefinitions>

        <Canvas PreviewMouseDown="PreviewMouseDownCanvas" MouseDown="MouseDownCanvas"
                Width="20" Height="18" VerticalAlignment="Center">

          <Ellipse x:Name="myEllipse" Canvas.Left="1" Canvas.Top="1" Width="16" Height="16"
                   Fill="Yellow" Stroke="Black" />
        </Canvas>

      </Grid>
    </Button>
  </Grid>
</Window>

//File:Window.xaml.cs

using System;
using System.Windows;
using System.Diagnostics;
using System.Windows.Shapes;
using System.Windows.Input;

namespace WpfApplication1
{
    public partial class Window1 : System.Windows.Window
    {
        public Window1()
        {
            InitializeComponent();

        }
       
        void PreviewMouseDownCanvas(object sender, RoutedEventArgs e){ 
            Debug.WriteLine("PreviewMouseDownCanvas"); 
        }

        void MouseDownCanvas(object sender, RoutedEventArgs e){ 
            Debug.WriteLine("MouseDownCanvas"); 
        }
    }
}

24.37.Canvas
	24.37.1.	Simple Canvas Layout
	24.37.2.	Put Nested Canvas to TabItem
	24.37.3.	Positioning on a Canvas
	24.37.4.	Canvas without Viewbox
	24.37.5.	Animation target Canvas Left, Top
	24.37.6.	Pixel Not Snapped
	24.37.7.	Rotate Shape in a Canvas
	24.37.8.	Canvas dependant
	24.37.9.	Canvas.SetTop
	24.37.10.	Canvas.SetBottom
	24.37.11.	Canvas.SetRight
	24.37.12.	Canvas PreviewMouseDown action and MouseDown action
	24.37.13.	Create a Scrollable Canvas Control
	24.37.14.	Create a Zoomable Canvas Control
	24.37.15.	Set control position for Canvas
	24.37.16.	Canvas Positioning Properties Sample
	24.37.17.	Get position on a Canvas with Canvas.GetLeft
	24.37.18.	Canvas size changed event