private void TAcceleration_MouseMove(object sender, MouseEventArgs e)
{
(sender as TextBox).SelectionLength = 0;
TAcceleration.Select(TAcceleration.Text.Length, 0);
}
private void TAcceleration_KeyUp(object sender, KeyEventArgs e)
{
strFlagType = Сalculate();
(sender as TextBox).SelectionLength = 0;
TAcceleration.Select(TAcceleration.Text.Length, 0);
}