Oracle Forms Developer – Form Builder Reference, Volume 1

DELETE_TREE_NODE built-in
Description
86
Removes the data element from the tree.
Syntax
PROCEDURE DELETE_TREE_NODE
(item_name VARCHAR2,
node NODE);
PROCEDURE DELETE_TREE_NODE
(item_id ITEM,
node NODE);
Built-in Type unrestricted procedure
Enter Query Mode no
Parameters
item_name Specifies the name of the object created at design time.
The data type of the name is VARCHAR2 string.
Item_id Specifies the unique ID that Form Builder assigns to the
item when created. Use the FIND_ITEM built-in to
return the ID to an appropriately typed variable. The
data type of the ID is ITEM.
node Specifies a valid node.
Usage Notes
Removing a branch node also removes all child nodes.
DELETE_TREE_NODE examples
/*
** Built-in: DELETE_TREE_NODE
*/
-- This code finds a node with the label "Zetie"
-- and deletes it and all of its children.
DECLARE
htree ITEM;
delete_node FTREE.NODE;
BEGIN
-- Find the tree itself.
htree := Find_Item(’tree_block.htree3’);