The mouse-related event handlers for implementing drag-and-drop : Mouse « Events « Silverlight

The mouse-related event handlers for implementing drag-and-drop

The mouse-related event handlers for implementing drag-and-drop

<UserControl x:Class='SilverlightApplication3.MainPage'
    d:DesignWidth='640' d:DesignHeight='480'>
    <Canvas x:Name="LayoutRoot" Background="Black">
        <TextBlock x:Name="myTextBlock" Foreground="White" Text="Waiting..." MouseLeftButtonDown="MyTextBlock_MouseLeftButtonDown" MouseMove="MyTextBlock_MouseMove" MouseLeftButtonUp="MyTextBlock_MouseLeftButtonUp" /> 

//File: Page.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace SilverlightApplication3
    public partial class MainPage : UserControl
        private bool isMouseDown = false;
        private Point lastPoint = new Point();
        private Point offset = new Point();

        public MainPage()

        public void MyTextBlock_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)                                               
            isMouseDown = true;                                                     
            lastPoint = e.GetPosition(null);                                        
            offset.X = lastPoint.X - Convert.ToDouble(myTextBlock.GetValue(Canvas.LeftProperty));
            offset.Y = lastPoint.Y - Convert.ToDouble(myTextBlock.GetValue(Canvas.TopProperty));          

        public void MyTextBlock_MouseMove(object sender, MouseEventArgs e)        
            if (isMouseDown == true)                                                
                lastPoint = e.GetPosition(null);                                      
                myTextBlock.SetValue(Canvas.LeftProperty, (lastPoint.X-offset.X));    
                myTextBlock.SetValue(Canvas.TopProperty, (lastPoint.Y-offset.Y));     

        public void MyTextBlock_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)                                                 
            isMouseDown = false;                                                   


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1.Grid MouseMoveGrid MouseMove
2.Grid MouseLeftButtonDownGrid MouseLeftButtonDown
3.Grid MouseLeftButtonUpGrid MouseLeftButtonUp
4.Attaches a MouseEnter Event Handler to a TextBlock Silverlight ControlAttaches a MouseEnter Event Handler to a TextBlock Silverlight Control
5.Use Mouse events to control animationUse Mouse events to control animation
6.Mouse down, up and moved eventsMouse down, up and moved events