UIHierarchy.GetItem Method (String)
Gets the item designated by given path.
Assembly: EnvDTE (in EnvDTE.dll)
Note that this method may fail with an E_INVALIDARG, if the item being retrieved is located in a project hierarchy or folder that has not first been expanded in the Solution Explorer.
The path consists of node names separated by backslashes (\). If two backslashes are adjacent to one another, they are parsed as a single backslash character that is part of a node name and not a separator.
For details on another way to access nodes in a UIHierarchy, see the documentation for UIHierarchy.