Automatically close messagebox in C#

Question

I am currently developing an application in C# where I display a MessageBox. How can I automatically close the message box after a couple of seconds?

Indeed - a timer - and your own custom dialog rather than a MessageBox, otherwise you'll have to start fiddling with sending events to the MessageBox in order to get it to close, I'd imagine. — Will A, Dec 06 '10 at 00:36
For C++ Check out this https://stackoverflow.com/a/66004457/6219626 — Haseeb Mir, Feb 02 '21 at 06:11

score 12 · Accepted Answer · answered Dec 06 '10 at 00:43

You will need to create your own Window, with the code-behind containing a loaded handler and a timer handler as follows:

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    Timer t = new Timer();
    t.Interval = 3000;
    t.Elapsed += new ElapsedEventHandler(t_Elapsed);
    t.Start();
}

void t_Elapsed(object sender, ElapsedEventArgs e)
{
    this.Dispatcher.Invoke(new Action(()=>
    {
        this.Close();
    }),null);
}

You can then make your custom message box appear by calling ShowDialog():

MyWindow w = new MyWindow();
w.ShowDialog();

Which of the available Timer types is that? – StingyJack Aug 13 '18 at 01:17 — StingyJack, Aug 13 '18 at 01:17

score 3 · Answer 2 · edited May 23 '17 at 12:01

3

The System.Windows.MessageBox.Show() method has an overload which takes an owner Window as the first parameter. If we create an invisible owner Window which we then close after a specified time, it's child message box would close as well.

Here is the complete answer: https://stackoverflow.com/a/20098381/2190520

edited May 23 '17 at 12:01

Community

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answered Nov 20 '13 at 14:27

Esge

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score 1 · Answer 3 · edited Dec 25 '19 at 09:32

1

[System.Runtime.InteropServices.DllImport("user32.dll", SetLastError=true)]
static extern int MessageBoxTimeout(IntPtr hwnd, String text, String title,
                                     uint type, Int16 wLanguageId, Int32 milliseconds);

MessageBoxTimeout((System.IntPtr)0 ,"Message", "Title",0,0, 1000);
//last parameter timeout in milisecond

edited Dec 25 '19 at 09:32

deHaar

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answered Dec 25 '19 at 09:22

user12594936

11
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score -1 · Answer 4 · answered Nov 04 '21 at 18:38

-1

This library https://github.com/DmitryGaravsky/AutoClosingMessageBox implements a MessageBox which closes itself after a specified time.

Also see this stackoverflow answer https://stackoverflow.com/a/14522952/4856020

answered Nov 04 '21 at 18:38

datchung

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Automatically close messagebox in C#

4 Answers4

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