DeselectRange Method (ITreeView)
Clears the selection of the specified range of nodes in a tree. Tip: Use the BuildNodePath method to build the node path strings to be used as the fromNodePath and toNodePath arguments for this method.
C# Syntax
void DeselectRange( 
   string fromNodePath,
   string toNodePath
)

Parameters

fromNodePath
0-based index of the first node in the range
toNodePath
0-based index of the last node of the range