C# NotifyIcon stays in tray after the Balloon Tip has been closed

问题

after the Ballon Tip of my NotifyIcon has been close the icon still stays in tray. It vanishes only when I hover it with my mouse cursor.

I have a class Notification.cs which has one component - NotifyIcon.

I call it from my Console Application as I only want to show the notification when certain conditions are fulfilled.

Some code:

how I call the notification from within my program:

Notification not = new Notification("Error occured, do this or that", "Some error", System.Windows.Forms.ToolTipIcon.Error);
not.getIcon().ShowBalloonTip(1000);

the notification class:

public Notification(string baloonTipText, string baloonTipTitle, System.Windows.Forms.ToolTipIcon icon) : this()
{
    this.icon.Visible = true;
    this.icon.BalloonTipText = baloonTipText;
    this.icon.BalloonTipTitle = baloonTipTitle;
    this.icon.BalloonTipIcon = icon;
}

public System.Windows.Forms.NotifyIcon getIcon()
{
    return this.icon;
}

private void icon_BalloonTipClosed(object sender, EventArgs e)
{
    this.icon.Visible = false;
    this.icon.Dispose();            
}

Any ideas?

回答1:

Because you're running in a console application, your icon_BalloonTipClosed handler will not be invoked when the balloon tip is closed (no message pump). You will need to call Dispose manually either as your application exits or set a timer (System.Threading.Timer, System.Windows.Forms.Timer will not work) with a timeout longer than the balloon tip's timeout. e.g.:

timer = new Timer(state => not.getIcon().Dispose(), null, 1200, Timeout.Infinite);

回答2:

using System;
using System.ComponentModel;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Windows.Forms;

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

        private void btBallonToolTip_Click(object sender, EventArgs e)
        {
            ShowBalloonTip();
            this.Hide();
        }

        private void ShowBalloonTip()
        {
            Container bpcomponents = new Container();
            ContextMenu contextMenu1 = new ContextMenu();

            MenuItem runMenu = new MenuItem();
            runMenu.Index = 1;
            runMenu.Text = "Run...";
            runMenu.Click += new EventHandler(runMenu_Click);

            MenuItem breakMenu = new MenuItem();
            breakMenu.Index = 2;
            breakMenu.Text = "-------------";

            MenuItem exitMenu = new MenuItem();
            exitMenu.Index = 3;
            exitMenu.Text = "E&xit";

            exitMenu.Click += new EventHandler(exitMenu_Click);

            // Initialize contextMenu1
            contextMenu1.MenuItems.AddRange(
                        new System.Windows.Forms.MenuItem[] { runMenu, breakMenu, exitMenu });

            // Initialize menuItem1

            this.ClientSize = new System.Drawing.Size(0, 0);
            this.Text = "Ballon Tootip Example";

            // Create the NotifyIcon.
            NotifyIcon notifyIcon = new NotifyIcon(bpcomponents);

            // The Icon property sets the icon that will appear
            // in the systray for this application.
            string iconPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + @"\setup-icon.ico";
            notifyIcon.Icon = new Icon(iconPath);

            // The ContextMenu property sets the menu that will
            // appear when the systray icon is right clicked.
            notifyIcon.ContextMenu = contextMenu1;

            notifyIcon.Visible = true;

            // The Text property sets the text that will be displayed,
            // in a tooltip, when the mouse hovers over the systray icon.
            notifyIcon.Text = "Morgan Tech Space BallonTip Running...";
            notifyIcon.BalloonTipText = "Morgan Tech Space BallonTip Running...";
            notifyIcon.BalloonTipTitle = "Morgan Tech Space";
            notifyIcon.ShowBalloonTip(1000);
        }

        void exitMenu_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        void runMenu_Click(object sender, EventArgs e)
        {
            MessageBox.Show("BallonTip is Running....");
        }
    }
}

来源：https://stackoverflow.com/questions/12973191/c-sharp-notifyicon-stays-in-tray-after-the-balloon-tip-has-been-closed

标签

notifyicon