ActivateNode(Int32,MouseButton) Method
Activates (double-clicks) a node in the tree-view object by node index.
C# Syntax
void ActivateNode( 
   int nodeIndex,
   MouseButton button
)

Parameters

nodeIndex
Specified index of the node to activate from the tree-view object
button
Optional: The mouse button used to activate the tree view node. Possible values:HP.LFT.SDK.MouseButton (default value: left button)