Visual Basic Programming Code Examples

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Search a treeview for a item



Search a treeview for a item

The following code can be used to search a treeview for an item of text:

'Purpose     :  Performs a recallable search on a treeview.
'Inputs      :  tvFind                  The treeview to search.
'               sFindItem               The text to search for (supports wildcards)
'               [bSearchAll]            If True will search all nodes of the treeview, else
'                                       will only search top level nodes.
'               [lItemIndex]            If specified will return this matching index.
'                                       eg, if set to 2 then will return the second node which matches the search criteria.
'Outputs     :  Returns the a matching treeview node or nothing if the item is not found

 
Function TreeViewFindNode(tvFind As TreeView, ByVal sFindItem As String, Optional bSearchAll As Boolean = True, Optional lItemIndex As Long = 1) As Node
    Dim oThisNode As Node, bSearch As Boolean, lInstance As Long
    
    sFindItem = UCase$(sFindItem)
    bSearch = True
    
    For Each oThisNode In tvFind.Nodes
        If bSearchAll = False Then
            'Only Search Top Level Nodes
            If (oThisNode.Parent Is Nothing) = False Then
                bSearch = False
            Else
                bSearch = True
            End If
        End If
        If bSearch Then
            If (UCase$(oThisNode.Text) Like sFindItem) = True Then
                lInstance = lInstance + 1
                If lInstance >= lItemIndex Then
                    'Found matching item
                    Set TreeViewFindNode = oThisNode
                    Exit For
                End If
            End If
        End If
    Next
End Function


Sub Test()
    Dim lItemIndex As Long, oFoundNode As Node
    Do
        lItemIndex = lItemIndex + 1
        Set oFoundNode = TreeViewFindNode(tvAccounts, "Red", True, lItemIndex)
        If tvAccounts Is Nothing Then
            'Didn't find any more items
            Exit Do
        End If
        oFoundNode.EnsureVisible
        If MsgBox("Found " & oFoundNode.Text & vbNewLine & "Find next matching item? ", vbQuestion + vbYesNo) = vbNo Then
            Exit Do
        End If
    Loop
End Sub