custom step type

[LabVIEW_Vish]

Hi,
I am using TS4.0.1. and LV 7.1.
I tried to create a custom step type (MultipleNumericTest_VBATPXI), which similiar to NI_MultipleNumeriLimitTest.  The difference is, I have two additional measured data. (I don't want to check those against Limit, but want to log to the database. )
So I created the custome Datatype (Limit_test_VBATPXI) similar to "NI_LimitMeasurement" and add required two fields.  This datatype is passed to the "MultipleNumericTest_VBATPXI" steptype for Result.Measurement  type.
In property browser it shows Results.Measurement as Limit_test_VBATPXI type. But when I add one value in Limit window, Result.Measurements.Measurement[0] becomes type of NI_LimitMeasurement !
How to solve this?
br,
Vishal

[JettR]

Hello Vishal,

When you click the "Add Measurement" button on the Limits tab of this step, it is actually calling the EditSubstep of the NI Multiple Numeric Limit Step type.  This Edit substep function, EditMultiNumericMeasurementStepUsingExpr(), is located in the  "<TestStand>\Components\NI\StepTypes\CommonSubsteps\CommonSubsteps.dll" file.  If you wanted to change the behavior of your custom step type, you would need to make your own dll (all of the source code for the CommonSubsteps.dll is provided) that would add your custom type instead of the NI_LimitMeasurement type.  I hope this helps alleviate any confusion.