About cl_gui_simple_tree

[Former Member]

I want to build a tree that contained more than 5 nodes, use the table mtreesnode-node_key to build the node_key ,but this fields only 12 characters long.

Is there a good method to come true?

thanks

example:

• CLEAR node.

• ///the key is only 12 charactors

• CONCATENATE i_mtree-swerk i_mtree-beber i_mtree-tplnr

• INTO node-node_key.

*

• CONCATENATE i_mtree-swerk i_mtree-beber INTO str1.

• node-relatkey = str1.

• node-relatship = cl_gui_simple_tree=>relat_last_child.

• node-hidden = ''.

• node-disabled = ''.

• node-isfolder = 'X'.

• CLEAR node-n_image.

• CLEAR node-exp_image.

• CLEAR node-expander.

*

• node-text = i_mtree-pltxt.

• APPEND node TO node_table.

[Former Member]

Thanks very much.

i think this is the best answer to solve this problem now,

but it has a fault. if you want to add more node_key, you have to build a temp table to record the node_key.

The T-CODE IH01's source codes contain the answer ,but i can't understand.

[Former Member]

I'm not 100% sure I understand the question, but the problem seems to be that the combined length of i_mtree-swerk i_mtree-beber i_mtree-tplnr can exceed 12 characters... so instead you could set up a second internal table as follows:

data:
  g_node_key(12)        type n,
  begin of gs_key_lookup,
    key_numc            like g_node_key,
    swerk               like iloa-swerk,
    beber               like iloa-beber,
    tplnr               like iloa-tplnr,
  end of gs_key_lookup,
  gt_key_lookup         like gs_key_lookup occurs 100.

and in your logic to build "node-node_key" simply add an entry to the table above for each new element, and retrieve entries from the internal table when you need to decode a node_key... something like...

data:
  ls_key_lookup              like gs_key_lookup.

* ///the key is only 12 charactors
move-corresponding i_mtree to ls_node_key.
add 1 to g_node_key.  "unique ID per node
ls_node_key-node_key = g_node_key.
append ls_node_key to gt_node_key. "for lookups to decode node-node_key

clear: node.
node-node_key = g_node_key. "unique key links into gt_node_key
*" etc etc

Jonathan

[Former Member]

Thanks very much.

i think this is the best answer to solve this problem now,

but it has a fault. if you want to add more node_key, you have to build a temp table to record the node_key.

The T-CODE IH01's source codes contain the answer ,but i can't understand.

[Former Member]

Actually I think they are using something quite similar (at first glance at least)... the gt_node_objects is of type gtype_node_objects which has node_key in it.. and "hier" is a parallel internal table i.e. the sy-tabix of hier = sy-tabix of the gt_node_objects... the result is the same as above ... the g_node_key counter defined in the example above is the equivalent of using sy-tabix - I just prefer to make my own key.

Jonathan