WorkflowOutline.Expanding Event  
Definition
Important
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Event raised when the TreeView for the document outline is expanding.
protected public:
 event System::Windows::Forms::TreeViewCancelEventHandler ^ Expanding;
	protected internal event System.Windows.Forms.TreeViewCancelEventHandler Expanding;
	member this.Expanding : System.Windows.Forms.TreeViewCancelEventHandler 
	Protected Friend Custom Event Expanding As TreeViewCancelEventHandler