private void Box_GotFocus(object sender, EventArgs e)
{
IsInput = true;
Box.BackColor = ColorUtil.Blend(BgColor, Color.SteelBlue);
Timer.AddTrigger(20, () =>
{
var txt = ThreadSafe.GetTextControl(Box);
ThreadSafe.SetSelectTextBox(Box, 0, txt.Length);
});
}