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[UWP]TextBox LostFocus not working RRS feed

  • Question

  • Hi. 

    I develop UWP app. I have a textbox, i need event gotfocus and lostfocus. I need at lost focus, changeed property in my viewmodel, but when the focus goes to another element, event lostfocus not working.Why?

     private void TextBox_GotFocus(object sender, RoutedEventArgs e)
            {
                ViewModelMainPage.TextBoxFocus = true;
            }

            private void TextBox_LostFocus(object sender, RoutedEventArgs e)
            {
              
                ViewModelMainPage.TextBoxFocus = false;
            }


    • Edited by Jayden Gu Thursday, July 6, 2017 5:18 AM title tag
    Wednesday, July 5, 2017 1:45 PM

All replies

  • Hi Vladimir Kombarov,

    The LostFocus event will be fired when you set the focus on other element. Have you add Breakpoint in the LostFocus event? If it does not enter the LostFocus event, please tell us more detail about your OS version of your Windows and your VS SDK.

    Also would you please share us a simple reproduced project, it will help us analyze and diagnose this issue more clearly.


    Best Regards,

    Jayden Gu


    MSDN Community Support
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    Thursday, July 6, 2017 7:25 AM
  • Hi Vladimir,

    Set a break point on the event handler as suggested is a good way to see if the event happened. Besides, could you please also paste the xaml for your TextBox like this?

    <TextBox GotFocus="TextBox_GotFocus" LostFocus="TextBox_LostFocus"></TextBox>


    I build UWPs:  Arrnage Pro Cloud Resource Tool


    • Edited by Saar Shen Saturday, July 8, 2017 5:17 AM
    Saturday, July 8, 2017 5:16 AM