Structure

Question

Hi,
When I am creating the structure for some components it is asking for the reference field. For other components there is no need of refernece fields. What is the reason for this?
While iam creating the structure iam getting the following error?
Feld "LANGU": Nur Felder mit Datentyp LANG können als Sprachenfeld markiert sei     
Thanks
Edited by: rams s on May 13, 2008 7:39 AM

Answer 1

If you want to add components by entering the data type and length directly, choose Built-in type. You can enter values for fields DTyp, Length, Dec.places, and Short description. With Component type you can switch back to the screen for entering references to existing types.
You can enter a Reference Type in the Component Type field. If you enter a class, interface, or generic reference (ANY, OBJECT, or DATA) in the Component Type field, the R type field is set automatically. If you enter a reference type already defined in the Dictionary as a reference type, a blue arrow appears in the D type column.
If the type defined in the ABAP Dictionary or the built-in type is a reference type, set the indicator in the R Type column.
You can combine components with direct type definition and components that are defined by referencing an existing type as you like.
A reference type is a reference to a different type. You use a reference type to define the type of  reference variables in  ABAP Objects. There are several kinds of reference types:
Reference to a type defined in the Dictionary
Generic reference to ANY, OBJECT, or DATA. A reference of type ANY can point to objects as well as to data.
Reference to a predefined Dictionary type including the length specification and possibly the decimal places
http://help.sap.com/saphelp_nw70/helpdata/en/90/8d7310b1af11d194f600a0c929b3c3/content.htm
I hope it helps.
Best Regards,
Vibha
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