我正在尝试使用以下代码来显示气球通知。我已经验证它是使用断点执行的。它也没有显示任何错误。
我应该怎么做来调试这个，因为它不会抛出错误而不显示气球？
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);
}
您实际上没有指定要在任务栏中显示的图标。在LINQPad中运行代码，只需在调用notifyIcon.Icon = SystemIcons.Application之前添加ShowBalloonTip，我就可以显示提示了。另请注意，在完成Dispose实例后，应该调用NotifyIcon。
马修确定了这个问题，但我仍然努力将所有部分放在一起。所以我认为一个在LINQPad中工作的简洁示例会有所帮助（并且可能在其他地方）。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();
请参阅以下源代码。
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....");
}
}
}
ShowBalloonTip取毫秒数。 3毫秒可能太快，你甚至看不到。尝试更像3000的东西
您可能需要将组件模型传递给构造函数。这是我在所有例子中看到的。对不起已经很久没用过了。看这里的第一个答案：
看看这里的例子http://msdn.microsoft.com/en-us/library/system.windows.forms.notifyicon.aspx
我看到它与你的代码之间存在一些明显的差异，有许多你要遗漏的部分，例如创建一个ComponentModelContainer并将其传递给NotifyIcon的构造函数。
为了将来的编码员：
从Windows vista开始，不推荐使用[timeout]参数
见：C# NotifyIcon Show Balloon Parameter Deprecated
因此，您可以将0添加到> Windows Vista的参数中。更糟糕的是，对相关答案的评论表明，这些气球的替代品，吐司通知，仅在Windows 8中引入。因此，对于可怜的旧Windows 7落在两个凳子之间，Vista <7 <8，我们似乎在无论多久，Windows都希望在那里保留那个气球！我注意到它最终会逐渐消失，但经过一些实证测试后，我确信参数确实被忽略了。
因此，在上面的答案的基础上，特别是在评论中采用@jlmt建议的lambda函数，这是一个适用于Windows 7的解决方案：
//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();
}