How to Hide a Label in Morphx Report

Dear All

i Need to Display the Some Values Only

I am Explain in Simple Way actually i have five different types of Tax values our Company, i am writing the code to display the all five labels and values in the report by using the display methods in the Morphx Report.

i need to display only the value is there for each purchase order(if Vat =5000,CST =6000,Service Tax=0) i want to display only the vat and cst i don't want to see the service tax.

Can any one know please explain me.