private float GetHeight(Pad pad)
{
Height = Items.Cast<TTextBoxItem>().Sum(i => (int) pad.Graphics.MeasureString(i.Text, i.Font).Height + 2);
//foreach (TTextBoxItem ttextBoxItem in Items)
// Height += (int)pad.Graphics.MeasureString(ttextBoxItem.Text, ttextBoxItem.Font).Height + 2;
Height += 2;
return Height;
}