well, I have some Balloontip problems need to be settled, please help~~

I have a Event ListBox on the form, in the ListBox are some events

there is a NotifyIcon on the form

I want to show all the event to the user by using BalloonTip, Balloon can be closed only by user.(not automatically) How can I make it, thank you.

I have already give a code, but this code has problem, can any of you rewrite one, or find the problem of the code?

for(int i = 0; i<listBox1.Items.Count;++i)

{

notifyIcon1.Visible = true;
notifyIcon1.BalloonTipTitle = "You have a Notice";

notifyIcon1.BalloonTipText = this.listBox1.Items[ i ].ToString();
notifyIcon1.ShowBalloonTip(2000);

}

Hi,

Try the following. As you are invalidating the BalloonTip every time you call a new ShowBalloonTip method, the BalloonTipClosed method is getting called without the help of the user. Therefore, by employing a boolean to tell your program when the BalloonTip is being updated, it can distinguish between a user clicking the close button and the routine update of the time. Also, you might want to disable the Timer rather than just changing a flag when the user clicks the close button so that you're not using up memory with a timer not executing any code. Hope this helps

-----------------------------------------------------------

Public Class BalloonTipTime

Private Invalidated As Boolean

Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick

Dim timeSpent As TimeSpan = DateTime.Now - startTime

Dim toopTipText As String = timeSpent.Hours & ":" & timeSpent.Minutes & ":" & timeSpent.Seconds

Invalidated = True

NotifyIcon1.ShowBalloonTip(500, "Yout Status", toopTipText, ToolTipIcon.None)

End Sub

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

End Sub

Private Sub NotifyIcon1_BalloonTipClosed(ByVal sender As Object, ByVal e As System.EventArgs) Handles NotifyIcon1.BalloonTipClosed

If Invalid = False Then 'This method wasn't called by updating the BalloonTip

End If

Invalid = False 'Finished updating the BalloonTip

End Sub

End Class

With Regards

Rong Sheng,

your code is showing a list of BalloonTips one immediately after the other. According to the documentation, if you attempt to show a balloon whenanother isalready active, and both balloons are from the same application, the first will be closed and the second will be shown immediately (this may vary, please look at the doc). In your case, you will only see the last balloon. To achieve an effect of showing a list of notifications one after the other, make a list of them, and then wait for the BalloonTipClosed event before attempting to show the next in the list.

As for your second issue, you cannot keep a balloon active forever. As the documentation says, it depends on the OS and a few other conditions, but there are limits to the timeouts allowed, and are generally between 10 and 30 seconds. Your timeout will be automatically adjusted if it doesn't fit in this range.

The only possibility I see is to draw your own balloons. In this case you will be fully in control of their behavior.

--mc

Hello, thank you for answering me, I have a problem from your reply, that is

how can i wait for the BalloonTipClosed event?

can youshow mea hand?

Hi,

Try the following. As you are invalidating the BalloonTip every time you call a new ShowBalloonTip method, the BalloonTipClosed method is getting called without the help of the user. Therefore, by employing a boolean to tell your program when the BalloonTip is being updated, it can distinguish between a user clicking the close button and the routine update of the time. Also, you might want to disable the Timer rather than just changing a flag when the user clicks the close button so that you're not using up memory with a timer not executing any code. Hope this helps

-----------------------------------------------------------

Public Class BalloonTipTime

Private Invalidated As Boolean

Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick

Dim timeSpent As TimeSpan = DateTime.Now - startTime

Dim toopTipText As String = timeSpent.Hours & ":" & timeSpent.Minutes & ":" & timeSpent.Seconds

Invalidated = True

NotifyIcon1.ShowBalloonTip(500, "Yout Status", toopTipText, ToolTipIcon.None)

End Sub

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

End Sub

Private Sub NotifyIcon1_BalloonTipClosed(ByVal sender As Object, ByVal e As System.EventArgs) Handles NotifyIcon1.BalloonTipClosed

If Invalid = False Then 'This method wasn't called by updating the BalloonTip

End If

Invalid = False 'Finished updating the BalloonTip

End Sub

End Class

With Regards

Thanks toall of you, I have custom a form to instead of BalloonTip. I had solved the problem.

And, I am very sorry, for I am not familiar with VB.

Thank you again.