目的:要在状态栏中显示当前单击的是鼠标左键、中建还是右键,并同时显示鼠标的位置;
代码如下:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace statusStrip
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void Form1_MouseDown(object sender, MouseEventArgs e)
        {
            Point mouseDownLocation = new Point(e.X,e.Y);
            string eventString = null;
            switch (e.Button)
            { 
                case MouseButtons.Left:
                    eventString = "L";
                    break;
                case MouseButtons.Right:
                    eventString = "R";
                    break;
                case MouseButtons.Middle:
                    eventString = "M";
                    break;
                case MouseButtons.XButton1:
                    eventString = "X1";
                    break;
                case MouseButtons.XButton2:
                    eventString = "X2";
                    break;
                case MouseButtons.None:
                default:
                    break;            }
            if (eventString != null)
            {
                this.toolStripStatusLabel1.Text = "鼠标按下的键为:" + eventString.ToString() +
                    "鼠标落下的位置为:" + mouseDownLocation.ToString();
            }
            else
            { this.toolStripStatusLabel1.Text = "鼠标落下的位置为:" + mouseDownLocation.ToString(); }
        }
    }
}
但调试时状态栏什么都没有显示,怎么回事?