OnItemExpanding Event
Description
Indicates that the user is expanding a node of the TreeControl.
Parameters
- sItemText
- String identifying the label of the tree item.
- Key
- String specifying the a unique key in the tree structure identifying the tree node.
- Tree Node Handle specifying the tree node uniquely.
AutoLISP Syntax
Each control that throws this event has its handler that takes this generic form:
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(defun c:FormName_ControlName_OnItemExpanding (sItemText [as String] Key [as String or Tree Node Handle] /) ) |
Applies For
Example
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; React to the tree node being expanded
(defun c:MyForm_MyControl_OnItemExpanding
(sItemText Key /)
(princ "OnItemExpanding(")
(princ sItemText)
(princ ", ")
(princ Key)
(princ ")\n")
) |