CODEWITHSUNDEEP
c#wpf
KARTHI SRV
KARTHI SRV

Reputation: 499

Got focus Event to handle all textbox

This is my coding:

public partial class App : Application
{
    protected override void OnStartup(StartupEventArgs e)
    {
        EventManager.RegisterClassHandler(typeof(TextBox), UIElement.PreviewMouseLeftButtonDownEvent,
           new MouseButtonEventHandler(SelectivelyHandleMouseButton), true);
        EventManager.RegisterClassHandler(typeof(TextBox), UIElement.GotKeyboardFocusEvent,
          new RoutedEventHandler(SelectAllText), true);

        base.OnStartup(e);
    }

private static void SelectivelyHandleMouseButton(object sender, MouseButtonEventArgs e)
{
    var textbox = (sender as TextBox);
    if (textbox != null && !textbox.IsKeyboardFocusWithin)
    {
        if( e.OriginalSource.GetType().Name == "TextBoxView" )
        {
            e.Handled = true;
            textbox.Focus();
        }
    }
}

I got error in:

onstartup() method- method cannot be override

Upvotes: 0

Views: 744

Answers (1)

Andrey Ganin
Andrey Ganin

Reputation: 359

In App.xaml you need to subscribe to event Startup:

<Application x:Class="WpfApplication1.App"
                 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
                 StartupUri="MainWindow.xaml" Startup="Application_Startup">

    <Application.Resources>

    </Application.Resources>
</Application>

In App.xaml.cs:

private void Application_Startup(object sender, StartupEventArgs e)
{
    // Your code here
}

Upvotes: 1

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