Faster Datawindow Object References

Faster Datawindow Object ReferencesYou can get better performance by using a DWObject variable to resolve the object reference in a Datawindow property or data expression. Evaluating the reference once and reusing the resolved reference is more efficient than fully specifying the object reference again. This technique yields the most benefit if you are using a Datawindow expression in loop. For example the fully specified data expression within the loop must be resolved during each pass:

Integer li_Data, li_IFOR li_I = 1 to 100        li_Data = dw_1.Object.emp_salary.Primary[ li_I ]        .. // Code to process data valueNEXT

The following code uses a DWObject reference and has better performance:

Integer li_Data, li_IDWObject dwo_EmpSalarydwo_EmpSalary = dw_1.Object.emp_salary.PrimaryFOR li_I = 1 to 100        li_Data = dwo_EmpSalary[ li_I ]        .. // Code to process data valueNEXT