Question

Controlling a chart in Excel with VBA

Asked by: samsoro

I am trying to refresh an existing chart where the charted series will change depending on the input by the user:
 - how many funds are to be charted (determined by variable 'reportSize')
 - what series are to be shown (determined by 'wts' where of a possible number of 12 characteristics, only those with weights above zero are included

Here are the problems I am having:
 - I thought it would be easiest to delete the entire Series Collection and then add new series as I need them...the delete method, however, cannot be applied to the whole lot at once
 - When I try to Set wtSeries, I seem to be picking up a single cell, not the range I am trying reference, giving me a error when I try to set the SeriesCollection.Value = wtdSeries (incidentally, 'Set wtNames' works fine as it is a single cell)

The error message is: "Run-Time Error '438': Object does not support this property or method"

Here is the code....any help is much appreciated:

Dim wts() As Double ' gathered from a named range which includes the user weights; series with weights of zero are excluded
Dim m As Integer
Dim n As Integer
Dim wtSeries As Range
Dim wtName As Range
Dim reportSize As Integer ' number of funds to be included in the graph
Dim attribGraph As Object

reportSize = Worksheets("HYRank").Range("reporting")
Set attribGraph = Worksheets("HYReport").ChartObjects("Chart 67").Chart

wtOptions = 12
ReDim wts(wtOptions, 1)

With Worksheets("HYReport").Range("makeChart")
    For n = 1 To wtOptions
        wts(n, 1) = .Cells(1, n)
    Next n
End With

With attribGraph
    n = 1
    For m = 1 To wtOptions
        If wts(m, 1) > 0 Then
            With Worksheets("HYReport")
                Set wtSeries = .Range("attribution")(.Cells(1, m), .Cells(reportSize, m))
                Set wtName = .Range("attribName").Cells(1, m)
            End With
                .SeriesCollection.NewSeries
                .SeriesCollection(n).Name = wtName
                .SeriesCollection(n).Value = wtSeries
        End If
    Next m
End With

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Asked On
2004-06-18 at 11:26:27ID21030768
Tags

excel

,

vba

,

range

,

seriescollection

Topic

Visual Basic Programming

Participating Experts
2
Points
0
Comments
8

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Answers

 

by: samsoroPosted on 2004-06-18 at 12:58:28ID: 11348000

This has been bugging me, so I tried creating a simple worksheet with an existing range and then attempting to use VBA to name a subset of the range:

Private Sub

With Worksheets("Sheet1")
    .Range("wholeRange")(.Cells(1, 1), .Cells(24, 1)).Name = "SubSet"
End With

End Sub


Instead of naming the specified range, it names a single cell, one up and one to the left the existing range.  Is this a bug, or is my syntax screwed up?

 

by: samsoroPosted on 2004-06-18 at 20:42:53ID: 11349706

okay...it works this way....have to activate the chart I guess.  I am still trying to figure out how to find out how many series are in the chart object.  That way, I can modify, add or delete as necessary to properly size it....any thoughts?

Worksheets("HYReport").ChartObjects("Chart 67").Activate
ActiveChart.ChartArea.Select

With ActiveChart
    n = 1
    For m = 1 To wtOptions
        If wts(m, 1) > 0 Then
            .SeriesCollection.NewSeries
            .SeriesCollection(n).Name = "=HYReport!R70C" & 68 + m & ":R70C" & 68 + m
            .SeriesCollection(n).Values = "=HYReport!R71C" & 68 + m & ":R" & 70 + reportSize & "C" & 68 + m
            n = n + 1
        End If
    Next m
End With

 

by: samsoroPosted on 2004-06-19 at 05:46:34ID: 11350886

okay...solved both issues, albeit not pretty.  I am storing the current and last number of series in the chart on the spreadsheet.  If anyone has a more elegant solution, my ears are wide open:

current = Worksheets("HYReport").Range("BP67")
last = Worksheets("HYReport").Range("BP70")

'attribGraph.Activate
Worksheets("HYReport").ChartObjects("Chart 67").Activate
ActiveChart.ChartArea.Select

With ActiveChart
    If current < last Then
        n = 0
        For m = 1 To last - current
            ActiveChart.SeriesCollection(last - n).Delete
            n = n + 1
        Next m
    Else
        If last < current Then
            For m = 1 To current - last
                .SeriesCollection.NewSeries
            Next m
        End If
    End If
    n = 1
    For m = 1 To wtOptions
        If wts(m, 1) > 0 Then
            .SeriesCollection(n).Name = "=HYReport!R70C" & 68 + m & ":R70C" & 68 + m   'wtName
            .SeriesCollection(n).Values = "=HYReport!R71C" & 68 + m & ":R" & 70 + reportSize & "C" & 68 + m   'wtSeries
            .SeriesCollection(n).XValues = "=HYReport!R71C68:R" & 70 + reportSize & "C68"   'wtSeries
            n = n + 1
        End If
    Next m
End With

Worksheets("HYReport").Range("BP70") = n - 1

 

by: samsoroPosted on 2004-07-20 at 02:16:49ID: 11591057

Does anyone have a clue what I have been talking about in this note? ....am not used to having discussions only with myself.  I thought this was a legitimate issue and am a bit disappointed that no one out there chose to respond...at all.

My workaround is still a sucky solution.  I think it is a Microsoft bug.

 

by: moduloPosted on 2004-10-26 at 07:15:06ID: 12411054

PAQed, with points refunded (250)

modulo
Community Support Moderator

 

by: stopher2475Posted on 2008-07-02 at 07:31:33ID: 21916781

Was looking for this info myself today.
ActiveChart.SeriesCollection.Count will give you how many series in a chart.

Used it to loop the and shade the chart bars:
                    MyColor = 17
                    For ctr = 1 To ActiveChart.SeriesCollection.Count
                        ActiveChart.SeriesCollection(ctr).Select
                        Selection.Fill.OneColorGradient Style:=3, Variant:=1, Degree:=0.227450980392157
                        Selection.Fill.Visible = True
                        Selection.Fill.ForeColor.SchemeColor = MyColor
                        MyColor = MyColor + 1
                    Next ctr

20120131-EE-VQP-002

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