Keyboard won't dismiss even after Focus change

Question

I am creating a Windows 8.1 app and after the user presses a button, a popup opens over most of the screen. There are several textboxes inside the popover.

I found this sample code from microsoft about how to detect the appearance of the on-screen keyboard.

I have also found the following SO posts and sites basically informing that there is no way to force the keyboard to close, and the correct thing to do is in fact programmatically focus a hidden element on the page or disable and then re-enable the textbox:

So I followed the advice and created an invisible button. When the user taps the close button, it is supposed to give focus to that button and dismiss the keyboard. What happens is the textbox does lose focus, but the keyboard does not go away. If I cause the close button to give focus to the hidden button and close the popup (which is the desired effect), the keyboard does not go away until the view (that was previously under the popup) is tapped.

How can I make closing the popup cause the keyboard to dismiss?

EDIT: It appears that there might be a way to programmatically dismiss the keyboard because triggering the App Bar to open while the keyboardi s open automatically dismisses the keyboard.

score 9 · Accepted Answer · answered May 28 '14 at 07:59

9

When the textbox that shows the virtual keyboard was disabled it will dismiss the virtual keyboard. so the solution is set the textbox property IsEnabled to false and set it again to true so it can be use again.

TextBox.KeyDown += (s, a) => {
 if (a.Key == VirtualKey.Enter) {
   TextBox.IsEnabled = false;
   TextBox.IsEnabled = true;
 }

answered May 28 '14 at 07:59

Paul

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2
11

Works like a charm in Windows Phone 8.1 WinRT (Focus() on the parent container of course doesn't work). Thank you Paul! – Malutek Aug 10 '14 at 13:36
1

Works well, though I'd like a much cleaner solution... :( – matthewsheets Jul 27 '15 at 17:17

Yang C · Answer 2 · 2015-03-18T16:58:53.247

It was impossible to programmatically manage the touch-keyboard's appearance and disappearance. Unfortunately, changing the IsEnabled property didn't work for me.

The touch-keyboard appearance principle was known as Focus-driven, but I had walked out by setting the property IsTabStop=True on the UserControl explicitly. Besides, the TextBox won't activate the touch-keyboard if its IsTabStop=false.

In theory, I think the system searches the next potential TextBox, so that if so it wasn't to close and re-open, with touchable+inputable property. Maybe there were kind of bug that while releasing the Focus, current TextBox releases only his "touchable" focus, and didn't finish to release the keyboard's "inputable" focus, because that by default only the input-controls have Tab-Stoppable property.

By the way, if we close the UserControl by a CustomControl's Close button, the IsTabStop=true will be needed on his parent.

PS: Solution tested only on Windows 8.1 Store Application.

score 0 · Answer 3 · edited May 23 '17 at 11:47

0

Please check my answer to my own question:

https://stackoverflow.com/a/24252140/126537

Based on @Paul 's answer. Not very elegant, but works as charm.

edited May 23 '17 at 11:47

Community

1
1

answered Jun 16 '14 at 21:14

Harry

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score 0 · Answer 4 · edited Feb 27 '16 at 13:51

0

In my app this works fine:

protected override void OnNavigatedTo(NavigationEventArgs e)
{
    this.KeyDown += Strona_KeyDown;
}

private void Strona_KeyDown(object sender, KeyRoutedEventArgs e)
{
    if (e.Key == Windows.System.VirtualKey.Enter)
    {
        this.Focus(FocusState.Pointer);
    }
}

edited Feb 27 '16 at 13:51

Tunaki

132,869
46
340
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answered Feb 27 '16 at 13:24

kdn29

15
10

score 0 · Answer 5 · answered Mar 27 '17 at 22:55

In UWP Windows 10 simple disable/enable doesn't work anymore. But this works:

            TextBox.IsEnabled = false;

            var t = new DispatcherTimer();
            t.Interval = new TimeSpan(0, 0, 1);
            t.Tick += (a, b) =>
            {
                t.Stop();
                TextBox.IsEnabled = true;
            };
            t.Start();

Find more elegant solution? Please share.

Keyboard won't dismiss even after Focus change

5 Answers5

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