Tech Tip: Utility method to count the number of properties found in a C_Object

PRODUCT: 4D | VERSION: 15.x | PLATFORM: Mac & Win

Published On: October 19, 2016

Here is a simple utility method that can be used to count the number of properties found within a C_Object:

// UTIL_OB_COUNT
C_OBJECT($1)
C_LONGINT($0)
If (Count parameters=1)
   ARRAY TEXT($tmp_array;0)
   OB GET PROPERTY NAMES($1;$tmp_array)
   $0:=Size of array($tmp_array)
Else
   $0:=-1
End if

If the method above is saved as UTIL_OB_COUNT it could be used like this:

C_OBJECT($ob)
OB SET($ob;"a";"a")
OB SET($ob;"b";"a")
OB SET($ob;"c";"a")
alert(String(UTIL_OB_COUNT($ob))) // returns 3