Evaluate or Execute property

[Gotheallblacks]

Is there a way to execute a property ? eg a property of a custom object which has a property called "qty" and it is the child of a parent custom object which also has a property called "qty" with a numeric value of say 5.

The child object property "qty" has a char value of "this.parent.qty*3" (char expression) and by executing the child property it returns the result of the "this.parent.qty*3" ie 15 to the childs.qty.value.

 

[alvechurchdata]

I think you'll have to put the property into a memory variable before you can use macro expansion on it:
[TT]
strTemp = "this.parent.qty*3"
this.qty = &strTemp
[/TT]

Geoff Franklin

http://www.alvechurchdata.co.uk

 

[ChrisRChamberlain]

If I understand it correctly and if the value of this.childs.qty is character, you need to convert it back with

[COLOR=blue]WITH THIS
[tab].childs.qty = TRANS(.parent.qty * 3)
ENDW[/color]

FAQ184-2483 - answering getting answered.​

Chris
PDFcommander^tm.net
PDFcommander^tm.com

 

[craigsboyd]

Gotheallblacks,

If you want the Value property of the child to return teh evaluation of it's qty property then create a Value_Assign method for the child and in that method instead of returning the value...

Return Evaluate(this.qty)

SweetPotato Software Website
My Blog

 

[Gotheallblacks]

Thanks for your reply's. Because the child object(s) are being added at runtime and the child could belong to any of a number of parents. I couldn't use the parent name and use evaluate().
There are also several other properties of the child that needed evaluating and each child has different properties - Short story,I created a calc() method on the base child class and run it when required

LOCAL lcCmd AS String, lnProps AS Number, x ,laUDProps(1)
*!* Create array of user defined properties
lnProps=AMEMBERS(laUDProps,this,0,'U')
*!* Then Loop though each calculating its value
FOR x=1 TO lnProps
lcCmd=EVALUATE('this.'+laUDProps(x))
lcCmd='this.'+laUDProps(x)+'='+lcCmd
&lcCmd
x=x+1
ENDFOR

Thanks Geoff for pointing me in hopefully the right direction