Lock Form1& Form2在一起

问题描述

限时删除！！

当我运行我的程序时，会出现两个表单。

Form1和Form2。

现在我需要的是将form1的位置移动到屏幕的任何位置通过鼠标，form2移动到form1去的地方。

我的意思是我需要Form2才能锁定Form1。

如何????



谢谢。

When I run my program, two forms comes up.
Form1 and Form2.
Now what I need is when I move the placement of form1 to anywhere of screen via mouse, form2 moves where ever form1 goes.
I mean I need Form2 to be lock on Form1.
How????

Thanks.

推荐答案

using System;
using System.Drawing;
using System.Windows.Forms;

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

        Form2 f2 = new Form2();

        private void Form1_Load(object sender, EventArgs e)
        {
            f2.Show();

            // the Form2 instance will use the same EventHandlers
            // that the Form1 instance (Main Form) uses
            f2.LocationChanged += Form1_SizeAndLocationChanged;
            f2.SizeChanged += Form1_SizeAndLocationChanged;

            // need to adjust the position on Application start
            // note: you could just as well call this with
            // both arguments being 'null
            Form1_SizeAndLocationChanged(sender, e);
        }

        // convenience method
        private void PositionForm2(int fLeft, int fTop)
        {
            f2.Location = new Point(fLeft, fTop);
        }

        // Both the Form1 instance LocationChanged,
        // and SizeChanged Events use this EventHandler
        private void Form1_SizeAndLocationChanged(object sender, EventArgs e)
        {
            // experiment using one of these method calls

            // Form2 left, top docked Form1 right, top
            PositionForm2(this.Right, this.Top);

            // Form2 right, top docked Form1 left, top
            //PositionForm2(this.Left - f2.Width, this.Top);

            // Form2 left, top docked Form1 right, Bottom
            // PositionForm2(this.Right, this.Bottom);

            // Form2 right, top docked Form1 left, bottom
            //PositionForm2(this.Left - f2.Width, this.Bottom);
        }

        // try experimenting with this with the code in
        // Form1_SizeAndLocationChanged commented out
        // and observe the differences 
        //private void Form1_MouseMove(object sender, MouseEventArgs e)
        //{
            //Form1_SizeAndLocationChanged(sender, e);
        //}
    }
}

讨论：



1。此代码要求您在设计时将Form1 LocationChanged和SizeChanged事件的EventHandlers分配给Form1_SizeAndLocationChanged方法。



2.显示的简单示例存在一些问题这里应该解决生产质量代码：



a。如果目标是从不将Form2的任何部分移出屏幕边界怎么办？



b。如果Form1被最小化或最大化会发生什么？

Discussion:

1. This code requires you assign at design-time the EventHandlers for both Form1 LocationChanged and SizeChanged Events to the Form1_SizeAndLocationChanged method.

2. There are some issues with the simple example shown here that should be addressed for production quality code:

a. What if the goal is to never have any part of Form2 moved outside the Screen boundaries ?

b. What should happen if Form1 is Minimized, or Maximized ?

这篇关于Lock Form1& Form2在一起的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

1403页，肝出来的..