我正在尝试使用以下代码来显示气球通知。 我已通过使用断点验证它正在执行。 它也没有显示任何错误。
由于它没有抛出错误并且没有显示气球，我该怎么调试？
private void showBalloon(string title, string body)
{
NotifyIcon notifyIcon = new NotifyIcon();
notifyIcon.Visible = true;
if (title != null)
{
notifyIcon.BalloonTipTitle = title;
}
if (body != null)
{
notifyIcon.BalloonTipText = body;
}
notifyIcon.ShowBalloonTip(30000);
}
您尚未指定要在任务栏中显示的图标。在LINQPad中运行代码时，只需在调用ShowBalloonTip之前添加notifyIcon.Icon = SystemIcons.Application，即可显示提示。还请注意，在完成NotifyIcon实例后，应调用Dispose。
Matthew发现了这个问题，但我仍然很难将所有的部分组合在一起。所以我认为一个在LINQPad中可直接使用的简洁示例会很有帮助（并且可能适用于其他地方）。只需引用System.Windows.Forms程序集，并粘贴此代码即可。
var notification = new System.Windows.Forms.NotifyIcon()
{
Visible = true,
Icon = System.Drawing.SystemIcons.Information,
// optional - BalloonTipIcon = System.Windows.Forms.ToolTipIcon.Info,
// optional - BalloonTipTitle = "My Title",
BalloonTipText = "My long description...",
};
// Display for 5 seconds.
notification.ShowBalloonTip(5000);
// This will let the balloon close after it's 5 second timeout
// for demonstration purposes. Comment this out to see what happens
// when dispose is called while a balloon is still visible.
Thread.Sleep(10000);
// The notification should be disposed when you don't need it anymore,
// but doing so will immediately close the balloon if it's visible.
notification.Dispose();
ToolTip，而不是一个NotifyIcon。这可能与“此参数（超时）已在Windows Vista中停用。通知显示时间现在基于系统辅助功能设置。”有关。 - user276648ShowBalloonTip() 之前添加这些事件处理程序似乎对我来说效果不错，而无需线程睡眠：notification.BalloonTipClosed += (sender, args) => notification.Dispose(); 和 notification.BalloonTipClicked += (sender, args) => notification.Dispose();（我发现两者都是必需的，具体取决于用户是点击关闭还是让其超时）。 - jlmt//Todo: use abstract factory pattern to detect Windows 8 and in that case use a toastnotification instead
private void DisplayNotificationBalloon(string header, string message)
{
NotifyIcon notifyIcon = new NotifyIcon
{
Visible = true,
Icon = SystemIcons.Application
};
if (header != null)
{
notifyIcon.BalloonTipTitle = header;
}
if (message != null)
{
notifyIcon.BalloonTipText = message;
}
notifyIcon.BalloonTipClosed += (sender, args) => dispose(notifyIcon);
notifyIcon.BalloonTipClicked += (sender, args) => dispose(notifyIcon);
notifyIcon.ShowBalloonTip(0);
}
private void dispose(NotifyIcon notifyIcon)
{
notifyIcon.Dispose();
}
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....");
}
}
}
ShowBalloonnTip需要指定毫秒数。3 毫秒可能太快了，你甚至看不到它。尝试设置更长的时间，如 3000。
你可能需要将组件模型传递给构造函数。这是我在所有示例中看到的。很抱歉我已经很久没有使用过了。请参见以下第一个答案：
看一下这个例子 http://msdn.microsoft.com/en-us/library/system.windows.forms.notifyicon.aspx
我注意到它和你的代码之间有一些明显的区别，你忽略了很多部分，比如创建一个ComponentModelContainer并将其传递到NotifyIcon的构造函数中。
Dispose，否则它会一直存在，直到你将鼠标移到上面。 - Andrew Grinder