Thanks again for your help. It now works.Code for Hide All button:var vRows = TableA._Row1.count-1;for (var i=vRows;i>=0;i--) {if (TableA.resolveNode("Row1[" + i + "]").CheckBox1.rawValue!==0) { (TableA.resolveNode("Row1[" + i + "]").presence="hidden"); } }Code for Show All button:var vRows = Table...