Read access to an argument's properties

[Anonym]

Hello,

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

Here’s the code of the formula “MyFormula” :
[code]Arguments sig
MessageBox “MyFormula – Signal name = ” : sig.Name // second message box[/code]

Here’s the code I use to call “MyFormula” :
[code]MessageBox “Signal name = ” : MySignal.Name // first message box
MyFormula ( MySignal)
[/code]

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.

[Anonym]

Hello,

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

Here’s the code of the formula “MyFormula” :
[code]Arguments sig
MessageBox “MyFormula – Signal name = ” : sig.Name // second message box[/code]

Here’s the code I use to call “MyFormula” :
[code]MessageBox “Signal name = ” : MySignal.Name // first message box
MyFormula ( MySignal)
[/code]

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.

[Bernhard Kantz]

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.

[Author]

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