I have an app that gets input from a HID barcode scanner where I need to always keep the focus on an Entry control.

I have it working using a timer but I would like a cleaner solution.
I read everything I can find on the Entry control but found no information on how I might do this.

This is what I have working.

public MainPage()
{
    InitializeComponent();

    var KeepFocusTimer = Application.Current.Dispatcher.CreateTimer();
    KeepFocusTimer.Interval = TimeSpan.FromSeconds(10);
    KeepFocusTimer.Tick += (s, e) => OnKeepFocusTimer();
    KeepFocusTimer.Start();
}


void OnKeepFocusTimer()
{
    MainThread.BeginInvokeOnMainThread(() =>
    {
        tx_BarCodeNumber.Focus();
    });
}