private void UpdateContentTemplate()
{
Child = ContentTemplate?.LoadContent() as UIElement;
if (Child == null)
{
return;
}
this.textBox = ((FrameworkElement)Child)?.FindName("entry") as TextBoxEx;
if (this.textBox == null)
{
throw new InvalidOperationException("Need an entry TextBoxEx for EntryPopup");
}
}
protected override void OnPreviewKeyDown(KeyEventArgs e)
{
ratioTextBox = e.Source as TextBoxEx;
var incValue = e.KeyboardDevice.IsKeyDown(Key.LeftShift) || e.KeyboardDevice.IsKeyDown(Key.RightShift) ? 10 : 1;
switch (e.Key)
{
case Key.Up:
// Increment Value
ValueChanged(ratioTextBox.Text, ratioTextBox.CaretIndex, ratioTextBox.SelectionLength, incValue);
e.Handled = true;
break;
case Key.Down:
// Decrement Value
ValueChanged(ratioTextBox.Text, ratioTextBox.CaretIndex, ratioTextBox.SelectionLength, -incValue);
e.Handled = true;
break;
}
base.OnPreviewKeyDown(e);
}