Hi

Former Member — Thu, 25 Oct 2007 10:29:52 GMT

Hi,

I have declared two classes with names, ZCL_ONE, ZCL_TWO.

ZCL_TWO is inhering ZCL_ONE.

Now i am using them in the se38 program.

While i use it, Narrow casting is working fine, But widening casting is not working.

It is throwing an exception or a dump if i do not catch an exception.

Code:


DATA: OBJ1 TYPE REF TO ZCL_ONE,
           OBJ2 TYPE REF TO ZCL_TWO.

CREATE OBJECT OBJ1.

OBJ2 ?= OBJ1.

The above code is giving me dump. Any guesses about how to solve it.

I am able to work with the Narrow casting.. which is below code.. It is working fine.


DATA: OBJ1 TYPE REF TO ZCL_ONE,
          OBJ2 TYPE REF TO ZCL_TWO.

CREATE OBJECT OBJ2.

OBJ1 = OBJ2.

How to resolve the error.

Thanks in Advance.

Re: Hi

Former Member — Thu, 25 Oct 2007 16:39:10 GMT

Try the Below code it was working

"This  peice  i changed  for widening casting

DATA: OBJ1 TYPE REF TO ZCL_ONE,
           OBJ2 TYPE REF TO ZCL_TWO,
            OBJ  LIKE  OBJ2.

CREATE OBJECT OBJ2.
OBJ1 =  OB2 .
OBJ ?= OBJ1.

"This is your code which  is correct  for Narrow casting

DATA: OBJ1 TYPE REF TO ZCL_ONE,
           OBJ2 TYPE REF TO ZCL_TWO.

CREATE OBJECT OBJ2.
OBJ1 =  OB2 .

Reward points if it is usefull...

Girish