aControl.setPropertyValue("DataField", "Identifier");
aControl.setPropertyValue("Label", "Identifier");
aControl2 = columns.createColumn("TextField");
aControl2.setPropertyValue("DataField", "Publisher");
aControl2.setPropertyValue("Label", "Publisher");
aControl3 = columns.createColumn("TextField");
aControl3.setPropertyValue("DataField", "Author");
aControl3.setPropertyValue("Label", "Author");
aControl4 = columns.createColumn("TextField");
aControl4.setPropertyValue("DataField", "Title");
aControl4.setPropertyValue("Label", "Title");