How to show non-interactive, auto-hiding notification popup message with Windows Forms in c#?

Using Windows Forms, .NET 3.5 framework, language: c# I would like to show a popup window for 1 second to notify users of actions that are performed. For example, when I copy a file X I want to show a no开发者_JAVA技巧tification like "Copied file X to File X-copy". Should be shown for a second, then autohide.

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You can use a timer. Something along the lines of the following where ShowFloating does the initial display and HideFloating does, you know.

public void ShowFloatingForXMilliSeconds(int milliSeconds) {
    ShowFloating();
    if (_autoOffTimer == null) {
        _autoOffTimer = new System.Timers.Timer();
        _autoOffTimer.Elapsed += OnAutoOffTimerElapsed;
        _autoOffTimer.SynchronizingObject = this;
    }
    _autoOffTimer.Interval = milliSeconds;
    _autoOffTimer.Enabled = true;
}

void OnAutoOffTimerElapsed(Object sender, System.Timers.ElapsedEventArgs ea) {
    if ((_autoOffTimer != null) && _autoOffTimer.Enabled) {
        _autoOffTimer.Enabled = false;
        HideFloating();
    }
}

Also detach the timer handler and dispose the timer in Dispose.

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This topic will help you to make topmost window without stealing focus from currently active window.

To complete your solution, in simple case you need to add a timer on your form to make sure the form auto-closes after 1 second and locate your notification window properly (you probably want it in the bottom right part of the screen? - that's a simple arithmetic exercise).

For more advanced solution, you should create NotificationManager class and manage lifetime of your notification message forms there.

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Dispite the answers given. I think a message that pops up is somewhat not user friendly. What about using a statusbar link? It's not that evasive (and you can show the progress)