IVsTrackSelectionEx Interface

Notifies the environment of a change in the current selection and provides access to hierarchy and item information relating to the new selection.

Namespace:  Microsoft.VisualStudio.Shell.Interop
Assembly:  Microsoft.VisualStudio.Shell.Interop (in Microsoft.VisualStudio.Shell.Interop.dll)

public interface IVsTrackSelectionEx : ITrackSelection

The IVsTrackSelectionEx type exposes the following members.

Public methodGetCurrentSelectionReturns the current selection.
Public methodIsMyHierarchyCurrentDetermines whether the user's hierarchy is current.
Public methodOnElementValueChangeInforms the environment that a change in an element value has occurred. Element values are attached to a window's selection context and used in the same way to update the environment's user interface.
Public methodOnSelectChangeReports that the current selection container has changed.
Public methodOnSelectChangeExInforms the environment that a change in the current selection has occurred.

Project-type windows use IVsTrackSelectionEx to track changes to the active project. Such changes can include the current hierarchy, current project item, and element of selection. Project-type windows typically provide feedback to the user, possibly by highlighting a new item in the Solution Explorer window or changing the Visual Studio title bar.

Document and tool windows typically do not call IVsTrackSelectionEx because they track changes to selected objects only. These windows never alter the project hierarchy or item.

Notes to Callers

Components that populate the client area of a window call IVsTrackSelectionEx typically through the SVsTrackSelectionEx service to inform the environment of a change in selection within their window.