find leaf in tree

[Former Member]

hi friends

maybe some one can give me general definition of leaf

i think that u now when is leaf when Child<u> not Eq to 0</u> or <u>initial</u>

but i not sure

thanks

Regards

[Former Member]

hi friends

maybe some one can give me general definition of leaf

i think that u now when is leaf when Child<u> not Eq to 0</u> or <u>initial</u>

but i not sure

thanks

Regards

[Former Member]

hi

i need to now his defntion for tree in the tree i have level perant and chiled

thanks

[Former Member]

Hi Ricardo ,

Check this sample code.

• Add following code to 'Z......F01' INCLUDE

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&----

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*& Form CREATE_ALVTREE_HIERARCHY

&----

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• text

----

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• Builds ALV tree display, (inserts nodes, subnodes etc)

----

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form create_alvtree_hierarchy.

DATA: NODE LIKE MTREESNODE,

ld_node type string.

LOOP AT it_ekko INTO wa_ekko.

• Build the node table.

• Caution: The nodes are inserted into the tree according to the order

• in which they occur in the table. In consequence, a node must not

• occur in the node table before its parent node.

• Node with key 'Root'

node-node_key = wa_ekko-ebeln. " 'Root'. "#EC NOTEXT

" Key of the node

CLEAR node-relatkey. " Special case: A root node has no parent

CLEAR node-relatship. " node.

node-hidden = ' '. " The node is visible,

node-disabled = ' '. " selectable,

node-isfolder = 'X'. " a folder.

CLEAR node-n_image. " Folder-/ Leaf-Symbol in state "closed":

" use default.

CLEAR node-exp_image. " Folder-/ Leaf-Symbol in state "open":

" use default

CLEAR node-expander. " see below.

node-text = wa_ekko-ebeln. "'Root'.

APPEND node TO node_table.

LOOP AT it_ekpo INTO wa_ekpo WHERE ebeln EQ wa_ekko-ebeln.

• Node with key wa_ekpo-ebelp "'Child1'

ld_node = sy-tabix.

concatenate wa_ekpo-ebelp ld_node into ld_node.

node-node_key = ld_node. "'Child1'. #EC NOTEXT

• Node is inserted as child of the node with key wa_ekpo-ebeln "'Root'.

node-relatkey = wa_ekpo-ebeln. " 'Root'.

node-relatship = cl_gui_simple_tree=>relat_last_child.

node-hidden = ' '.

node-disabled = ' '.

node-isfolder = ' '.

CLEAR node-n_image.

CLEAR node-exp_image.

node-expander = ' '. " The node is marked with a '+', although

• it has no children. When the user clicks on the

• + to open the node, the event

• expand_no_children is fired. The programmer can

• add the children of the

• node within the event handler of the

• expand_no_children event

• (see method handle_expand_no_children

• of class lcl_application)

node-text = wa_ekpo-ebelp.

APPEND node TO node_table.

ENDLOOP.

ENDLOOP.

• Add nodes to alv tree

CALL METHOD GD_TREE->ADD_NODES

EXPORTING

TABLE_STRUCTURE_NAME = 'MTREESNODE'

NODE_TABLE = NODE_TABLE

EXCEPTIONS

FAILED = 1

ERROR_IN_NODE_TABLE = 2

DP_ERROR = 3

TABLE_STRUCTURE_NAME_NOT_FOUND = 4

OTHERS = 5.

Refer http://www.sapdevelopment.co.uk/reporting/alv/alvtree/simpletree_basic.htm for more details.

Reward if Useful.

Regards,

Chitra

[Former Member]

hi chitra

if i understand from your code when the chiled is not EQ 0 or initial i now that this is leaf ?

Regards

[Former Member]

Hi Ricardo,

Yes. That is Right.

Reward if Useful.

Regards,

Chitra