VS2005 Solution Explorer Collapse All

Cool marco to do this (Source):


Sub CollapseAll()
'http://geekswithblogs.net/scottkuhl/archive/2007/04/09/111195.aspx

'Set the depth of collapsing
Dim depth As Integer
depth = 1

' Get the the Solution Explorer tree
Dim solutionExplorer As UIHierarchy
solutionExplorer = DTE.Windows.Item(Constants.vsext_wk_SProjectWindow).Object()

' Check if there is any open solution
If (solutionExplorer.UIHierarchyItems.Count = 0) Then
Return
End If

' Get the top node (the name of the solution)
Dim rootNode As UIHierarchyItem = solutionExplorer.UIHierarchyItems.Item(1)
rootNode.DTE.SuppressUI = True

' Collapse each project node
Collapse(rootNode, solutionExplorer, 0, depth)

' Select the solution node, or else when you click
' on the solution window
' scrollbar, it will synchronize the open document
' with the tree and pop
' out the corresponding node which is probably not what you want.

rootNode.Select(vsUISelectionType.vsUISelectionTypeSelect)
rootNode.DTE.SuppressUI = False

End Sub

Private Sub Collapse(ByVal item As UIHierarchyItem, ByRef solutionExplorer As UIHierarchy, ByRef Level As Integer, ByRef Depth As Integer)

'Collapse to the right Depth
If Level <> 0 Then

' Re-cursive call
Collapse(innerItem, solutionExplorer, Level + 1, Depth)

' Collapse
If innerItem.UIHierarchyItems.Expanded Then
innerItem.UIHierarchyItems.Expanded = False
If innerItem.UIHierarchyItems.Expanded = True Then
' Bug in VS 2005
innerItem.Select(vsUISelectionType.vsUISelectionTypeSelect)
solutionExplorer.DoDefaultAction()
End If
End If

End If
Next
End If
End Sub