IVsUIHierarchyWindow::ExpandItem Method (IVsUIHierarchy^, UInt32, EXPANDFLAGS)

Visual Studio 2015

Controls the state or appearance of items in the hierarchy.

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

Syntax

C++

int ExpandItem(
	IVsUIHierarchy^ pUIH,
	unsigned int itemid,
	EXPANDFLAGS expf
)

Parameters

pUIH: Type: Microsoft.VisualStudio.Shell.Interop::IVsUIHierarchy^
[in] IVsUIHierarchy to modify the appearance of.

itemid: Type: System::UInt32
[in] Identifier of the item in the hierarchy. To change the appearance of the hierarchy itself, set itemid to VSITEMID_ROOT. For a list of itemid values, see VSITEMID.

expf: Type: Microsoft.VisualStudio.Shell.Interop::EXPANDFLAGS
[in] Specifies the state or appearance of the hierarchy or items within the hierarchy, such as whether the hierarchy or item is expanded, highlighted, or shown in bold font. For a list of expf values, see EXPANDFLAGS.

Return Value

Type: System::Int32

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

COM Signature

From vsshell.idl:

C++

HRESULT IVsUIHierarchyWindow::ExpandItem(
   [in] IVsUIHierarchy* pUIH,
   [in] VSITEMID itemid,
   [in] EXPANDFLAGS expf
);

Use this method to expand, collapse, bold, or highlight specific items or the hierarchy root itself. Use GetItemState to retrieve the state of the hierarchy set by the ExpandItem method.