iTextSharp.text.pdf.MultiColumnText.GetColumnBottom C# (CSharp) Метод

        private float GetColumnBottom()
        {
            if (desiredHeight == AUTOMATIC) {
                return document.Bottom;
            } else {
                return Math.Max(top - (desiredHeight - totalHeight), document.Bottom);
            }
        }

 internal float[] ResolvePositions(float[] positions)
 {
     if (!IsSimple())
     {
         return(positions);
     }
     if (mc.top == AUTOMATIC)
     {
         // this is bad - must be programmer error
         throw new Exception("resolvePositions called with top=AUTOMATIC (-1).  " +
                             "Top position must be set befure lines can be resolved");
     }
     positions[1] = mc.top;
     positions[3] = mc.GetColumnBottom();
     return(positions);
 }