I want to set the minimum height of row. however it seems there is limit i am using below code [http://forum.pdfsharp.de/viewtopic.php?f=2&t=2812 ]
var spacerRow = t1.AddRow();
spacerRow.Height = "0.1mm";
var para2 = new Paragraph();
para2.Format.LineSpacingRule = LineSpacingRule.Exactly;
para2.Format.LineSpacing = "0.1mm";
para2.Format.SpaceBefore = 0;
para2.Format.SpaceAfter = 0;
spacerRow.Cells[0].Add(para2);
but the height is not reducing any further. the spacer row is between the borderd rows as show in attached picture.