C# 弹出信息框（WinForm）

最新推荐文章于 2025-10-08 16:59:55 发布

原创最新推荐文章于 2025-10-08 16:59:55 发布 · 2.8k 阅读

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#winform #c# #timer #object #class

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本文介绍了一个自定义的Windows窗体应用程序，该程序实现了一个从屏幕底部淡入并缓缓上升到屏幕中间位置的弹窗效果，之后再缓缓下降并淡出消失。

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 自创弹窗
{
    public partial class BarForm : Form
    {
        private int n;
        private double i_clarity=0;
        public BarForm()
        {
            InitializeComponent();
        }

        private void BarForm_Load(object sender, EventArgs e)
        {
            this.Opacity = i_clarity;
            n = Screen.PrimaryScreen.WorkingArea.Height;
            this.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width - 250, Screen.PrimaryScreen.WorkingArea.Height);
            timer1.Enabled = true;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (this.Location.Y > Screen.PrimaryScreen.WorkingArea.Height - 99)
            {
                this.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width - 250, n +20);
                i_clarity = i_clarity+0.01 ;
                this.Opacity = i_clarity;//淡入淡出
                System.Threading.Thread.Sleep(1);//休眠一小下
                n = n - 1;//窗体往上缓缓升起，实现弹出消息效果
            }
            else
            {
                timer1.Enabled = false;
                System.Threading.Thread.Sleep(1000);//睡会觉，继续玩
                timer2.Enabled = true;
            }
        }

        private void timer2_Tick(object sender, EventArgs e)
        {
            if (this.Location.Y < Screen.PrimaryScreen.WorkingArea.Height + 30)
            {
                this.Location = new Point(Screen.PrimaryScreen.WorkingArea.Width - 250, n + 1);
                i_clarity = i_clarity -0.01;
                this.Opacity = i_clarity;//淡入淡出
                System.Threading.Thread.Sleep(1);//休眠一小下
                n = n + 1;//窗体缓缓下降，到屏幕最下端的时候关闭
            }
            else
            {
                timer2.Enabled = false;
                this.Close();
            }
        }
    }
}