C# WinForm 实现控件可拖拽

最新推荐文章于 2025-07-10 12:37:41 发布

转载最新推荐文章于 2025-07-10 12:37:41 发布 · 1.3k 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/jsonzheng/archive/2012/04/24/2468489.html

文章标签：

#c#

实现的功能：WinForm窗体中让控件可以随便拖动；类似于BS中弹出可拖动的层一样；

界面如图：

直接上代码：

namespace DropControlDemo
{
     public partial class Form1 : Form
    {
         public Form1()
        {
            InitializeComponent();
        }

         private bool isMouseDown = false;
         private Point mouseOffset; // 记录鼠标指针的坐标

         private void pan_Drop_MouseDown( object sender, MouseEventArgs e)
        {
             if (e.Button == MouseButtons.Left)
            {
                mouseOffset.X = e.X;
                mouseOffset.Y = e.Y;
                isMouseDown = true;
            }
        }

         private void pan_Drop_MouseMove( object sender, MouseEventArgs e)
        {
             if (isMouseDown)
            {
                 int left = pan_Drop.Left + e.X - mouseOffset.X;
                 int top = pan_Drop.Top + e.Y - mouseOffset.Y;
                pan_Drop.Location = new Point(left, top);
            }
        }

         private void pan_Drop_MouseUp( object sender, MouseEventArgs e)
        {
             if (e.Button == MouseButtons.Left)
            {
                isMouseDown = false;
            }
        }
    }
}

附件例子下载：猛击下载

转载于:https://www.cnblogs.com/jsonzheng/archive/2012/04/24/2468489.html