Read access to an argument’s properties

SupportCommunity FPScript Read access to an argument’s properties

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  • #12875
    Anonym
    Inaktiv

    Hello,

    I write a formula template and need to look at some properties of the arguments.

    Here’s the code of the formula “MyFormula” :

    Arguments sig
    MessageBox "MyFormula - Signal name = " : sig.Name // second message box

    Here’s the code I use to call “MyFormula” :

    MessageBox "Signal name = " : MySignal.Name // first message box
    MyFormula ( MySignal)
    

    FlexPro dispays the first message box, but reports an error “Read access to the object property or the list element ‘Name'”, at the ligne 2 in “MyFormula”.

    What’s wrong in my FPScript ?
    Is It possible to have read access to the argument’s properties ?

    Best regards.

    #8535
    Anonym
    Inaktiv

    Hello,

    I write a formula template and need to look at some properties of the arguments.

    Here’s the code of the formula “MyFormula” :

    Arguments sig
    MessageBox "MyFormula - Signal name = " : sig.Name // second message box

    Here’s the code I use to call “MyFormula” :

    MessageBox "Signal name = " : MySignal.Name // first message box
    MyFormula ( MySignal)
    

    FlexPro dispays the first message box, but reports an error “Read access to the object property or the list element ‘Name'”, at the ligne 2 in “MyFormula”.

    What’s wrong in my FPScript ?
    Is It possible to have read access to the argument’s properties ?

    Best regards.

    #9383
    Bernhard KantzBernhard Kantz
    Moderator

    The reason for the error is the passing of arguments by value to FPScript function formulas. So the argument sig soesn’t hold the object MySignal, it just gets its value contained in. This will change in FlexPro 10.
    If you want to access the object in FlexPro 9, you have to pass the name and access the properties via the indirection operator. E.g. $”MySignal”$.FullName will give you the full path.

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