How can I detect when the cursor leaves a Written Textbox using WPF C#

Question

I have a text box. I want when user type in it as soon as the cursor leaves the text box, some hidden text fields become visible. How can this be done? Thanks.

try this http://stackoverflow.com/questions/833943/watermark-hint-text-textbox-in-wpf — Arul Dinesh, Nov 04 '13 at 08:46
[LostFocus](http://msdn.microsoft.com/en-us/library/system.windows.uielement.lostfocus.aspx)? — Omri Btian, Nov 04 '13 at 08:59

score 1 · Accepted Answer · answered Nov 04 '13 at 09:08

1

 private void TextBox_OnLostFocus(object sender, RoutedEventArgs e)
    {
        myControl.Visibility = Visibility.Collapsed;

    }

and in your XAML:

 <TextBox LostFocus="TextBox_OnLostFocus"></TextBox>

answered Nov 04 '13 at 09:08

Ketobomb

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How can I detect when the cursor leaves a Written Textbox using WPF C#

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