Excel VBA Script to dynamically add series to chart - excel

Question

I'm trying to dynamically add multiple series to a line chart. I don't know beforehand how many series there are so it needs to be dynamic. What I've come up with but doesn't work is the following:
The sheet ActiveSheet (or Sheets("Data")) has Rows from C14 until Cend containing the XValues and Columns from E14:Eend until R14:Rend where "end" marks the last row of data as determined by column C. The series names are stored in row 9. XValues are the same for all series.
My big problem is, that I can't find a way to dynamically add all the data columns as series to my chart together with the respective name. I'm not an expert in VBA so please be kind. I already read various sources and tried many scripts, none seem to work. The Object Catalogue was a bit of a help, however my problem persists.
Sub MakeChart()
Dim LastColumn As Long
Dim LastRow As Long
Dim i As Integer
Dim u As Integer
Dim NameRng As String
Dim CountsRng As Range
Dim xRng As Range
LastColumn = ActiveSheet.Cells(8, Columns.Count).End(xlToLeft).Column
ColumnCount = LastColumn - 4
LastRow = ActiveSheet.Range("C" & ActiveSheet.Rows.Count).End(xlUp).Row
' Debug.Print ("Last Column: " & LastColumn & " Count: " & ColumnCount & " LastRow: " & LastRow)
Charts.Add
With ActiveChart
.ChartType = xlLineMarkers
.HasTitle = True
.ChartTitle.Text = "Test"
End With
For i = 1 To ColumnCount
u = i + 4
NameRng = Sheets("Data").Range("R9:C" & u).Value
Set xRng = Sheets("Data").Range("R14:C3", "R" & LastRow & ":C3")
Set CountsRng = Sheets("Data").Range("R14:C" & u, "R" & LastRow & ":C" & u)
' Debug.Print ("CountsRng: R14:C" & u & ", R" & LastRow & ":C" & u & " NameRng: " & NameRng & " xRng: R14:C3 , R" & LastRow & ":C3")
ActiveChart.SeriesCollection.NewSeries
ActiveChart.SeriesCollection(i).XValues = xRng
ActiveChart.SeriesCollection(i).Values = CountsRng
ActiveChart.SeriesCollection(i).Name = NameRng
Next i
End Sub

Answer 1

thanks for the help. I solved the problem. It seems as I have somehow completely messed up the notation of the cell range. You cannot use
Set xRng = Sheets("Data").Range("R14:C3", "R" & LastRow & ":C3")
But rather have to use
Set xRng = .Range(.Cells(14, 3), .Cells(LastRow, 3))
Also, the use of Charts.Add didnt help very much as Excel tries to automatically find the correct ranges for all series and adds them resulting in a completely messed up chart. A better way was to use
Set ChartObj = ActiveSheet.ChartObjects.Add(Left:=20, Width:=800, Top:=20, Height:=500)
As this will create a completely empty graph to which you can add your own series
Here is the complete and working code for anyone interested:
Sub MakeChart()
Dim LastRow As Long
Dim LastColumn As Long
Dim ColumnCount As Long
LastRow = ActiveSheet.Range("C" & ActiveSheet.Rows.Count).End(xlUp).Row
LastColumn = ActiveSheet.Cells(8, Columns.Count).End(xlToLeft).Column
ColumnCount = LastColumn - 4
Debug.Print ("Last Column: " & LastColumn & " Count: " & ColumnCount & " LastRow: " & LastRow)
Dim wsChart As Worksheet
Set wsChart = Sheets(1)
wsChart.Activate
Dim ChartObj As ChartObject
Set ChartObj = ActiveSheet.ChartObjects.Add(Left:=20, Width:=800, Top:=20, Height:=500)
ChartObj.chart.ChartType = xlLineMarkers
Dim i As Integer
Dim u As Integer
Dim NameRng As String
Dim xRng As Range
Dim CountsRng As Range
For i = 1 To ColumnCount
u = i + 4
With Sheets("Data")
NameRng = .Cells(9, u).Value
Set CountsRng = .Range(.Cells(14, u), .Cells(LastRow, u))
Set xRng = .Range(.Cells(14, 3), .Cells(LastRow, 3))
Debug.Print "--" & i & "--" & u & "--"
Debug.Print "x Range: " & xRng.Address
Debug.Print "Name Range: " & .Cells(9, u).Address
Debug.Print "Value Range: " & CountsRng.Address
End With
'Set ChartSeries = ChartObj.chart.SeriesCollection.NewSeries
'With ActiveChart.SeriesCollection.NewSeries
With ChartObj.chart.SeriesCollection.NewSeries
.XValues = xRng
.Values = CountsRng
.Name = NameRng
End With
'Set xRng = Nothing
'Set CountsRng = Nothing
'NameRng = ""
Next i
'ChartObj.Activate
With ChartObj.chart
.SetElement (msoElementLegendBottom)
.Axes(xlValue).MajorUnit = 1
.Axes(xlValue).MinorUnit = 0.5
.Axes(xlValue).MinorTickMark = xlOutside
'.Axes(xlCategory).TickLabels.NumberFormat = "#,##000"
.Axes(xlCategory).TickLabels.NumberFormat = "#,##0"
'.Location Where:=xlLocationAsObject, Name:="Plot"
End With
End Sub

Answer 2

sample code
Sub InsertChart()
Dim first As Long, last As Long
first = 10
last = 20
Dim wsChart As Worksheet
Set wsChart = Sheets(1)
wsChart.Activate
wsChart.Shapes.AddChart.Select
Dim chart As chart
Set chart = ActiveChart
chart.ChartType = xlXYScatter
' adding series
chart.SeriesCollection.NewSeries
chart.SeriesCollection(1).Name = "series name"
chart.SeriesCollection(1).XValues = "=" & ActiveSheet.Name & "!$A$" & first & ":$A$" & last
chart.SeriesCollection(1).Values = "=" & ActiveSheet.Name & "!$B$" & first & ":$B$" & last
End Sub
you can iterate over range and keep adding more series