一个拖动UserControl的问题
新建一个UserControl,在其中增加两个lable,设置其中一个Dock属性为 Fill
要求鼠标点在那个填充的lable上也要能使整个UserControl被拖动.
拖动UserControl
[解决办法]
如果是 winform

using System;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Data;
 using System.Drawing;
 using System.Text;
 using System.Windows.Forms;
 
 namespace WindowsApplication1
 {
     public partial class Form1 : Form
     {
         public Form1()
         {
             InitializeComponent();
         }
 
         private Point mPoint = new Point();
 
         private void Form1_MouseDown(object sender, MouseEventArgs e)
         {
             mPoint.X = e.X;
             mPoint.Y = e.Y;
         }
 
         private void Form1_MouseMove(object sender, MouseEventArgs e)
         {
             if (e.Button == MouseButtons.Left)
             {
                 Point myPosittion = MousePosition;
                 myPosittion.Offset(-mPoint.X, -mPoint.Y);
                 Location = myPosittion; 
 
             } 
         }
     }
 }

楼主只需要把 Form1_MouseMove 改成 lable_MouseMove即可
[解决办法]
直接把需要点击的控件的mousedown和mousemove事件都注册到2楼提供的方法里就可以了