美女跟我走-白红宇

美女跟我走

阅读量：6239 次

发布时间：2019-06-22

本文共 2892 字，大约阅读时间需要 9 分钟。

前台：

<UserControl x:Class="SilverlightApplication1.SilverlightControl1"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">
    <Grid Background="White" Name="LayOutGrid">
        <Button Height="70" HorizontalAlignment="Left" ClickMode="Hover"
                   Margin="120,120,0,0" Name="button1" VerticalAlignment="Top" Width="164" MouseLeftButtonDown="button1_MouseLeftButtonDown" MouseLeftButtonUp="button1_MouseLeftButtonUp" MouseMove="button1_MouseMove">
            <Button.Content>
                <StackPanel Orientation="Horizontal" Width="157">
                    <Image Source="/SilverlightApplication1;component/img/1.jpg" Width="62"></Image>
                    <TextBlock FontSize="18" Text="跟我走" Height="46" Margin="20" Width="64"></TextBlock>
                </StackPanel>
            </Button.Content>
        </Button>
        <TextBlock Height="23" HorizontalAlignment="Left" Margin="171,240,0,0" Name="textBlock1" Text="TextBlock" VerticalAlignment="Top" Canvas.Left="-25" Canvas.Top="-8" />
    </Grid>
</UserControl>

后台：

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 SilverlightApplication1
{

    public partial class SilverlightControl1 : UserControl
    {

        public SilverlightControl1()
        {

            InitializeComponent();

        }
        Point mousePosition;
        bool trackingMouseMove = false;
        //开始拖动对象
        private void button1_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {

            textBlock1.Text = "Test";
            FrameworkElement element = sender as FrameworkElement;
            trackingMouseMove = true;
            mousePosition = e.GetPosition(null);
            if (null != element)
            {

                //激活button拖动
                element.CaptureMouse();
                element.Cursor = Cursors.Hand;
            }
        }
        //拖动完成
        private void button1_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
        {

            FrameworkElement element = sender as FrameworkElement;
            //停止button拖动
            element.ReleaseMouseCapture();
            element.Cursor = null;
            trackingMouseMove = false;
            mousePosition.X = mousePosition.Y = 0;
        }
        //移动对象
        private void button1_MouseMove(object sender, MouseEventArgs e)
        {

            FrameworkElement element = sender as FrameworkElement;
            if (trackingMouseMove)
            {

                double daltaV = e.GetPosition(null).X - mousePosition.X;
                double daltaH = e.GetPosition(null).Y - mousePosition.Y;
                Thickness tk = button1.Margin;
                double newTop = daltaH + tk.Top;
                double newLeft = daltaV + tk.Left;

                tk.Top = newTop;
                tk.Left = newLeft;
                element.SetValue(Grid.MarginProperty, tk);

                mousePosition = e.GetPosition(null);
                textBlock1.Text = "X=" + tk.Top + ",Y=" + tk.Left + "," + tk.Bottom + "," + tk.Right;
            }
        }
    }
}

原文链接：

转载于:https://my.oschina.net/changpinghu/blog/92487

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