IN THIS APPLICATION FACTORED LOAD ,ANGLE ARRANGEMENT, THICKNESS OF GUSSET PLATE ETC. ARE THE INPUTS. BY THESE INPUTS ALL THE BUTTONS ARE ENABLED IN SEQUENCE .APPLICATION CONTAINS THREE ACTIVITIES. AT THE END OF APPLICATION, IT GENERATE A PDF FILE BY USER DEFINED NAME.IF NEXT BUTTON OR DROPDOWN LIST IS NOT ENABLED AT THE TIME THEN IT INDICATES THAT USER HAVE TO CHANGE CURRENT VALUE AND AFTER THIS REMAINING BUTTON OR SPINNER ARE ENABLE IN SEQUENCE.