topic Re: Class CL_TREE_MODEL in Application Development and Automation Discussions

Class CL_TREE_MODEL

Former Member — Tue, 30 Sep 2008 11:13:08 GMT

Dear Colleagues !

I'd like to develop a tree in the class CL_TREE_MODEL because it has an own method PRINT_TREE to print the content in a tree form. But how can I fill the tree with nodes and items, which method is responsible for it ?

Thank You for Your helps !

Regards Peter

Re: Class CL_TREE_MODEL

uwe_schieferstein — Tue, 30 Sep 2008 19:10:48 GMT

Hello Peter

You cannot use class CL_TREE_MODEL for building your tree control because this is just the basic class for a class hierarchy (e.g. it does not have a method ADD_NODE).

Instead, you need to use one of its subclasses, e.g. CL_ITEM_TREE_MODEL -> CL_COLUMN_TREE_MODEL or CL_SIMPLE_TREE_MODEL.

All these subclasses inherit the PRINT_TREE method of CL_TREE_MODEL.

For sample reports of these classes have a look through the programs in package SEU_TREE_MODEL.

Regards

Uwe

Re: Class CL_TREE_MODEL

Former Member — Wed, 01 Oct 2008 13:00:24 GMT

Hi Uwe,

thank You for Your help, I changed the program - and it functions fine !

Kind regards

Peter