How to make TextBox lose its focus?

Question

How to make TextBox lose its focus and hide onscreen keyboard when user touches Enter virtual key?

    private void TheName_KeyDown(object sender, KeyRoutedEventArgs e) {
        var tb = sender as TextBox;
        if (e.Key == Windows.System.VirtualKey.Enter) {
            // ... tb.LooseTheFocus_PLEASE(); !???
        }
    }

Answer 1

    /// <summary>
    /// Makes virtual keyboard disappear
    /// </summary>
    /// <param name="sender"></param>
    private void LoseFocus(object sender) {
        var control = sender as Control;
        var isTabStop = control.IsTabStop;
        control.IsTabStop = false;
        control.IsEnabled = false;
        control.IsEnabled = true;
        control.IsTabStop = isTabStop;
    }

    /// <summary>
    /// Makes virtual keyboard disappear when user taps enter key
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void LooseFocusOnEnter(object sender, KeyRoutedEventArgs e) {
        if (e.Key == Windows.System.VirtualKey.Enter) {
            e.Handled = true; LoseFocus(sender);
        }
    }

It's ugly. But it works. The key part is IsTabStop property. If I don't touch it - the keyboard disappers for a fraction of a second and reapears again.

Answer 2

Just set the focus to the page.

this.Focus();