Grouping and naming shapes in Excel with vba

Question

In Excel vba, I am creating two shapes in excel using vba. An arrow, which I name "aro" + i, and a textbox, which I name "text" + i, where i is a number indicating the number of a photograph.

So, say for photograph 3 I will creat arrow "aro3" and textbox "text3".

I then want to group them and rename that group "arotext" + i, so "arotext3" in this instance.

So far I have been doing the grouping and renaming like this:

targetSheet.shapes.Range(Array(Arrow.Name, textBox.Name)).Select
Selection.group
Selection.Name = "AroTxt" & Number

which works splendidly in a sub, but now I want to change this into a function and return the named group, so I tried something like this:

Dim arrowBoxGroup as Object
set arrowBoxGroup = targetSheet.shapes.Range(Array(Arrow.Name, textBox.Name))
arrowBoxGroup.group
arrowBoxGroup.Name = "AroTxt" & Number

I run into problems when I create a new group which has the same name as one which has already been created. So, if I create a second "aro3" and "text3" and then try to group them and rename the group to "arotext3" I get an error because a group with the same name is already present.

The thing I don't understand is that when I did this using the method referring to the selection, I could rename every group with the same name if I wanted and wouldn't get an error. Why does it work when referring to the Selection object, but fails when trying to use an assigned object?

UPDATE:

Since somebody asked, the code I have so far is below. arrow and textbox are an arrow and a textbox which point into a direction arbitrarily defined by the user using a form.

This then creates an arrow at the correct angle on the target worksheet and places a textbox with the specified number (also through the form) at the end of the arrow, so that it effectively forms a callout. I know that there are callouts, but they don't do what I want so I had to make my own.

I have to group the textbox and arrow because 1) they belong together, 2) I keep track of which callouts have already been placed using the group's name as a reference, 3) the user has to place the callout in the right location on a map which is embedded in the worksheet.

So far I have managed to make this into a function by making the return value a GroupObject. But this still relies on Sheet.Shapes.range().Select, which in my opinion is a very bad way of doing this. I am looking for a way which does not rely on the selection object.

And I would like to understand why this works when using selection, but fails when using strong typed variables to hold the objects.

    Public Function MakeArrow(ByVal No As Integer, ByVal angle As Double, ByVal size As ArrowSize, ByVal ArrowX As Double, ByVal ArrowY As Double, ByVal TargetInternalAngle As Double, ByRef targetSheet As Worksheet) As GroupObject

    Dim Number As String
    Dim fontSize As Integer
    Dim textboxwidth As Integer
    Dim textboxheight As Integer
    Dim arrowScale As Double
    Dim X1 As Double
    Dim Y1 As Double
    Dim X2 As Double
    Dim Y2 As Double
    Dim xBox As Double
    Dim yBox As Double
    Dim testRange As Range
    Dim arrow As Shape
    Dim textBox As Shape
'    Dim arrowTextbox As ShapeRange
'    Dim arrowTextboxGroup As Variant

    Select Case size
        Case ArrowSize.normal
            fontSize = fontSizeNormal
            arrowScale = arrowScaleNormal
        Case ArrowSize.small
            fontSize = fontSizeSmall
            arrowScale = arrowScaleSmall
        Case ArrowSize.smaller
            fontSize = fontSizeSmaller
            arrowScale = arrowScaleSmaller
    End Select
    arrowScale = baseArrowLength * arrowScale

    'Estimate required text box width
    Number = Trim(CStr(No))
    Set testRange = shtTextWidth.Range("A1")
    testRange.value = Number
    testRange.Font.Name = "ＭＳ Ｐ明朝"
    testRange.Font.size = fontSize
    shtTextWidth.Columns(testRange.Column).EntireColumn.AutoFit
    shtTextWidth.Columns(testRange.row).EntireRow.AutoFit
    textboxwidth = testRange.Width * 0.8
    textboxheight = testRange.Height * 0.9
    testRange.Clear

    'Make arrow
    X1 = ArrowX
    Y1 = ArrowY
    X2 = X1 + arrowScale * Cos(angle)
    Y2 = Y1 - arrowScale * Sin(angle)
    Set arrow = AddArrow(X1, Y1, X2, Y2, Number, targetSheet)

    'Make text box
    Set textBox = Addtextbox(angle, Number, fontSize, X2, Y2, textboxwidth, textboxheight, TargetInternalAngle, targetSheet)

    'Group arrow and test box
    targetSheet.shapes.Range(Array(arrow.Name, textBox.Name)).group.Select
    Selection.Name = "AroTxt" & Number

    Set MakeArrow = Selection

'    Set arrowTextbox = targetSheet.shapes.Range(Array(arrow.Name, textBox.Name))
'    Set arrowTextboxGroup = arrowTextbox.group
'    arrowTextboxGroup.Name = "AroTxt" & Number
'
'    Set MakeArrow = arrowTextboxGroup

End Function

Private Function AddArrow(ByVal StartX As Double, ByVal StartY As Double, ByVal EndX As Double, ByVal EndY As Double, ByVal Number As String, ByRef targetSheet As Worksheet) As Shape

    Set AddArrow = targetSheet.shapes.AddLine(StartX, StartY, EndX, EndY)
    With AddArrow
        .Name = "Aro" & Number
        With .Line
            .BeginArrowheadStyle = msoArrowheadTriangle
            .BeginArrowheadLength = msoArrowheadLengthMedium
            .BeginArrowheadWidth = msoArrowheadWidthMedium
            .ForeColor.RGB = RGB(0, 0, 255)
        End With
    End With

End Function

Private Function Addtextbox(ByVal angle As Double, ByVal Number As String, ByVal fontSize As Integer, ByVal arrowEndX As Double, ByVal arrowEndY As Double, ByVal Width As Integer, ByVal Height As Integer, ByVal LimitAngle As Double, ByRef targetSheet As Worksheet) As Shape

    Dim xBox, yBox As Integer
    Dim PI As Double
    Dim horizontalAlignment As eTextBoxHorizontalAlignment
    Dim verticalAlignment As eTextBoxVerticalAlignment

    PI = 4 * Atn(1)

    If LimitAngle = 0 Then
        LimitAngle = PI / 4
    End If

    Select Case angle
        'Right
        Case 0 To LimitAngle, 2 * PI - LimitAngle To 2 * PI
            xBox = arrowEndX
            yBox = arrowEndY - Height / 2
            horizontalAlignment = eTextBoxHorizontalAlignment.left
            verticalAlignment = eTextBoxVerticalAlignment.Center
        'Top
        Case LimitAngle To PI - LimitAngle
            xBox = arrowEndX - Width / 2
            yBox = arrowEndY - Height
            horizontalAlignment = eTextBoxHorizontalAlignment.Middle
            verticalAlignment = eTextBoxVerticalAlignment.Bottom
        'Left
        Case PI - LimitAngle To PI + LimitAngle
            xBox = arrowEndX - Width
            yBox = arrowEndY - Height / 2
            horizontalAlignment = eTextBoxHorizontalAlignment.Right
            verticalAlignment = eTextBoxVerticalAlignment.Center
        'Bottom
        Case PI + LimitAngle To 2 * PI - LimitAngle
            xBox = arrowEndX - Width / 2
            yBox = arrowEndY
            horizontalAlignment = eTextBoxHorizontalAlignment.Middle
            verticalAlignment = eTextBoxVerticalAlignment.top
    End Select

    Set Addtextbox = targetSheet.shapes.Addtextbox(msoTextOrientationHorizontal, xBox, yBox, Width, Height)
    With Addtextbox
        .Name = "Txt" & Number
        With .TextFrame
            .AutoMargins = False
            .AutoSize = False
            .MarginLeft = 0#
            .MarginRight = 0#
            .MarginTop = 0#
            .MarginBottom = 0#
            Select Case verticalAlignment
                Case eTextBoxVerticalAlignment.Bottom
                    .verticalAlignment = xlVAlignBottom
                Case eTextBoxVerticalAlignment.Center
                    .verticalAlignment = xlVAlignCenter
                Case eTextBoxVerticalAlignment.top
                    .verticalAlignment = xlVAlignTop
            End Select
            Select Case horizontalAlignment
                Case eTextBoxHorizontalAlignment.left
                    .horizontalAlignment = xlHAlignLeft
                Case eTextBoxHorizontalAlignment.Middle
                    .horizontalAlignment = xlHAlignCenter
                Case eTextBoxHorizontalAlignment.Right
                    .horizontalAlignment = xlHAlignRight
            End Select
            With .Characters
                .Text = Number
                With .Font
                    .Name = "ＭＳ Ｐ明朝"
                    .FontStyle = "標準"
                    .size = fontSize
                    .Strikethrough = False
                    .Superscript = False
                    .Subscript = False
                    .OutlineFont = False
                    .Shadow = False
                    .Underline = xlUnderlineStyleNone
                    .ColorIndex = xlAutomatic
                End With
            End With
        End With
        .Fill.Visible = msoFalse
        .Fill.Solid
        .Fill.Transparency = 1#
        With .Line
            .Weight = 0.75
            .DashStyle = msoLineSolid
            .style = msoLineSingle
            .Transparency = 0#
            .Visible = msoFalse
        End With
    End With


End Function

Answer 1

Range.Group returns a value. You might try:

Set arrowBoxRange = targetSheet.shapes.Range(Array(Arrow.Name, textBox.Name))
Set arrowBoxGroup = arrowBoxRange.Group
arrowBoxGroup.Name = "AroTxt" & Number

I suspect that the current Selection gets updated as if the following in your earlier work:

Set Selection = Selection.Group  'it's as if this is done for you when you create the group.

which is causing the difference.

FYI, I'm using Excel 2010 and cannot duplicate the original code snippet based on Selection (I get an error doing "Selection.Name = ", which gives object does not support property.)

Ok, I can get this to work:

Selection.Group.Select
Selection.Name = "AroTxt"

Of course, like the other snippet I suggest, this reassigns the group's return value, so that Selection in Selection.Group and Selection.Name are referring to different objects, which I think is what you want.