Display Measurement Value(s) in SequenceView

[Skeptical]

How does one display the measurment value(s) of a step in a SequenceView control connected to the ExecutionViewMgr? It would seem to be a reasonable thing to want to display as you are executing the test but I can't find any way to do it. Surely National Instruments is not so naive is to have overlooked this important functionality.

[James_Grey]

The description field displays the measurement by default. See the attached screenshot. Also notice the Edit Step List Configurations menu item in the screenshot. You can you use it to add columns that display user defined information.

[Skeptical]

Thanks for pointing out the measurement in the Description field. I had missed that. However, I was hoping for an exclusive field. I have tried adding a column but have not been successful at figuring out the correct expression to use to display just the measurement. If it isn't obvious, I am new to TestStand.

[James_Grey · Accepted solution]

Try something like:

(Step.Result.Status == "" || Step.Result.Status == "Skipped") ? "" : PropertyExists("Step.Result.Numeric") ? Str(Step.Result.Numeric) : PropertyExists("Step.Result.String") ? Str(Step.Result.String) : ""

[Skeptical]

Thanks. That should do it.

[Bendy227]

how about to display a multiple numeric measurement results when UseIndividualDataSources in enabled.

i try somthing like this, but it only make sense when UseIndividualDataSources is not enabled.

(PropertyExists("Step.Result.Measurement") && Step.UseIndividualDataSources == False) ? Str(Step.NumericArray,"%$.3g",1,False,", ") :
(PropertyExists("Step.Result.Measurement") && Step.UseIndividualDataSources == True) ? (Str(Evaluate(Step.DataSourceArray[0]),"%$.3g") + /*PropertyExists("Step.DataSourceArray[1]") ? */", " + Str(Evaluate(Step.DataSourceArray[1]),"%$.3g") + /*PropertyExists("Step.DataSourceArray[2]") ? */", " + Str(Evaluate(Step.DataSourceArray[2]),"%$.3g") + /*PropertyExists("Step.DataSourceArray[3]") ? */", " + Str(Evaluate(Step.DataSourceArray[3]),"%$.3g") + "" ) :""

[Bendy227]

It works right now using the follow expression

(PropertyExists("Step.Result.Measurement") && Step.UseIndividualDataSources == False) ? Str(Step.NumericArray,"%$.3g",1,False,", ") :
(PropertyExists("Step.Result.Measurement") && Step.UseIndividualDataSources == True) ? (Str(Evaluate(Step.DataSourceArray[0]),"%$.3g") + (PropertyExists("Step.DataSourceArray[1]") ? ", " + Str(Evaluate(Step.DataSourceArray[1]),"%$.3g") : "") + (PropertyExists("Step.DataSourceArray[2]") ? ", " + Str(Evaluate(Step.DataSourceArray[2]),"%$.3g") : "") + (PropertyExists("Step.DataSourceArray[3]") ? ", " + Str(Evaluate(Step.DataSourceArray[3]),"%$.3g") : "") + (PropertyExists("Step.DataSourceArray[4]") ? ", " + Str(Evaluate(Step.DataSourceArray[4]),"%$.3g") : "") + (PropertyExists("Step.DataSourceArray[5]") ? ", " + Str(Evaluate(Step.DataSourceArray[5]),"%$.3g") : "")) :""


But is it correct to display results for multiple numeric test like this? It is impossible to enumerate all the elements for DataSourceArray?

[CorbinH]

Hello Bendy,

Since expressions cannot have loops, the best way to iterate through an array like this is using recursion. I think you will find the following community example quite helpful:

http://decibel.ni.com/content/docs/DOC-5826

One difference I would make is using StationGlobals instead of FileGlobals just in case you are using multiple sequence files. Here are the modifications I made to display the numeric array of a multiple numeric limit test.

Step List Configuration column expression:

StationGlobals.RecursiveNum = 1,

(TypeOf(RunState.Step) == "NumericLimitTest") ? Step.Result.Numeric :

(((TypeOf(RunState.Step)) == "NI_MultipleNumericLimitTest") ? Evaluate(StationGlobals.RecursiveExpr) : "")

StationGlobals.RecursiveExpr value:

(GetNumElements(Step.Result.Measurement) == 0) ? 0 :
    ((StationGlobals.RecursiveNum == GetNumElements(Step.NumericArray)) ? Str(RunState.Step.NumericArray[StationGlobals.RecursiveNum - 1],"%$.3g") :
    (StationGlobals.RecursiveNum = StationGlobals.RecursiveNum + 1, Str(RunState.Step.NumericArray[StationGlobals.RecursiveNum - 2],"%$.3g") + ", " + Str(Evaluate
     (StationGlobals.RecursiveExpr))
    )
)

As you noticed, I didn't implement the UseIndividualDataSources check, but it looks like you already have that figured out. Hopefully this helps!

[Bendy227]

Hello, Corbin

The example really help, it shows me another way that i can not reach, thank you very much.

Bendy