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IVsUIHierarchyWindow.ExpandItem Method

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)

int ExpandItem (
	[InAttribute] IVsUIHierarchy pUIH,
	[InAttribute] uint itemid,
	[InAttribute] EXPANDFLAGS expf
)
int ExpandItem (
	/** @attribute InAttribute() */ IVsUIHierarchy pUIH, 
	/** @attribute InAttribute() */ UInt32 itemid, 
	/** @attribute InAttribute() */ EXPANDFLAGS expf
)
function ExpandItem (
	pUIH : IVsUIHierarchy, 
	itemid : uint, 
	expf : EXPANDFLAGS
) : int

Parameters

pUIH

[in] IVsUIHierarchy to modify the appearance of.

itemid

[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

[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

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

COM Signature

From vsshell.idl:

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.

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