namespace WinFormsApp_DragControls
{
public class DragControl
{
//待拖动的控件
private Control m_Control;
//鼠标按下时的x，y坐标
private int m_X;
private int m_Y;
public DragControl(Control control)
{
m_Control = control;
m_Control.MouseDown += new MouseEventHandler(control_MouseDown);
m_Control.MouseMove += new MouseEventHandler(contro_MouseMove);
}
private void control_MouseDown(object sender, MouseEventArgs e)
{
m_X = e.X;
m_Y = e.Y;
}
private void contro_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
int x = e.X - m_X;
int y = e.Y - m_Y;
this.m_Control.Left += x;
this.m_Control.Top += y;
}
}
}
}
调用：
DragControl obj1 = new DragControl(button1);
则表示在运行的界面上，支持随意拖动button1
另外还可以进一步实现改变控件大小、GDI+实现加边界脚点、保存控件的位置到xml下次可以读取(布局)以及自动布局N个Control的算法等，想进一步了解可与本人联系，此处不多叙述..
