C#倒计时关闭提示框

前两天实现某个功能需要做一个提示框并且能够自动关闭的,就从网上搜了一个能够自动关闭的提示框 ,但由于我需要的场景是不确定计时时间的,所以并没有使用到该窗体,但是我觉得可以留存备用 ,后边也把我

这种倒计时的提示框用处还是很多的,用于自动弹窗自动关闭 ,虽然在我的项目中没有

其核心方法在 timer(TimerCallBack,Object,int32,int32) TimerCallBack 是一个委托 ,代表要执行的方法,其用途可以用在各个定时去调用方法的场景,而且可以设置窗体的FormBorderStyle的属性为None,设置窗体边框和标题栏外观不显示.

以下为网上找的一段代码实现的定时关闭窗体的功能 ,但由于是之前找的,已经找不到原作者,在此表示十分抱歉

以下代码非本人编写:

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

namespace Demo
{
    public partial class AutoCloseMessageBox : Form
    {
        public AutoCloseMessageBox()
        {
            InitializeComponent();
        }
        public void getMassage(string text)
        {
            label1.Text = text;
        }

        public void GetText(string caption)
        {
            this.Text = caption;
        }

        System.Threading.Timer _timeoutTimer;
        string _caption;
       
        AutoCloseMessageBox(string text, string caption, int timeout)
        {
            _caption = caption;
            _timeoutTimer = new System.Threading.Timer(OnTimerElapsed,
                null, timeout, System.Threading.Timeout.Infinite);
           
            AutoCloseMessageBox m_MassageBox = new AutoCloseMessageBox();

            m_MassageBox.getMassage(text);
            m_MassageBox.GetText(caption);
            m_MassageBox.ShowDialog();

        public static void Show(string text, string caption, int timeout)
        {
            new AutoCloseMessageBox(text, caption, timeout);
        }

        void OnTimerElapsed(object state)
        {
            IntPtr mbWnd = FindWindow(null, _caption);
            if (mbWnd != IntPtr.Zero)
                SendMessage(mbWnd, WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
            _timeoutTimer.Dispose();
        }
        const int WM_CLOSE = 0x0010;
        [System.Runtime.InteropServices.DllImport("user32.dll", SetLastError = true)]
        static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
        [System.Runtime.InteropServices.DllImport("user32.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto)]
        static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);

    }
}

调用时直接使用类名.show(text,captiom,timeout) 直接调用即可

下边是当时的项目使用场景的解决办法

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

namespace NewuView.Mix
{
    public partial class ErrorForm : Form
    {
        public ErrorForm()
        {
            InitializeComponent();
        }

        private void BarcodeErrorForm_Load(object sender, EventArgs e)
        {
            this.ShowInTaskbar = false;
        }

        public void Clear()
        {
            if (this.InvokeRequired)
            {
                this.BeginInvoke(new MethodInvoker(Clear));
            }
            else
            {
                this.richTextBox1.Clear();
            }
        }


        public void SetMsg(string msg)
        {
            if (this.InvokeRequired)
            {
                this.BeginInvoke(new Action<string>(SetMsg), msg);
            }
            else
            {
                this.richTextBox1.AppendText(msg + Environment.NewLine);
            }
        }

        public Point Point1 { get; set; }
        public void ShowForm()
        {
            if (this.InvokeRequired)
            {
                this.Invoke(new MethodInvoker(ShowForm));
            }
            else
            {
                this.Location = Point1;
                this.BringToFront();
                this.Visible = true;
            }
        }

        public void HideForm()
        {
            if (this.InvokeRequired)
            {
                this.Invoke(new MethodInvoker(HideForm));
            }
            else
            {
                this.richTextBox1.Clear();
                this.Visible = false;
            }
        }
       
    }
}