ZedGraph - Force all graph panes to be the same size - vb.net

Question

I am using the ZedGraph control (zgc) to create individual stacked bar charts and display them in a single stacked column as shown in the image below.
The issue that I am having is that I have no control over the number of panes that are displayed in the control as this is determined by the number of items in a listbox. It seems that the default nature of the control allows the height of the graph panes to change depending on the number of panes that are displayed within the control.
The zgc is set to dock=fill within a panel control that is set to dock=fill within the form. I would like to force the graph panes to be a static height and when needed have a vertical scroll bar appear in the panel when the number of graph panes exceeds the height of the form. How can I go about achieving this? My code for creating and populating the zgc is posted below the image.
Private Sub CreateGraph(ByVal dat As Date)
Dim count As Integer = 0
Dim master As MasterPane = zgc.MasterPane
master.Fill = New Fill(Color.FromArgb(180, 180, 180), Color.FromArgb(180, 180, 180), 45.0F)
master.PaneList.Clear()
master.Title.IsVisible = True
master.Title.Text = "Workload for " & dat.ToShortDateString()
master.Margin.All = 10
master.InnerPaneGap = 5
master.IsCommonScaleFactor = False
For Each mach As String In lbMach.Items
rowCount = 0
Dim myPaneT As New GraphPane(New Rectangle(10, 10, 10, 10), "", "Time in Minutes", mach)
myPaneT.Fill.IsVisible = False
myPaneT.Chart.Fill = New Fill(Color.White, Color.White, 45.0F)
myPaneT.BaseDimension = 3.0F
myPaneT.XAxis.Title.IsVisible = False
myPaneT.XAxis.Scale.IsVisible = False
myPaneT.XAxis.Scale.Min = 0
myPaneT.XAxis.Scale.Max = (MeiSettings.WrkHrs * 60)
myPaneT.Legend.IsVisible = True
myPaneT.Border.IsVisible = False
myPaneT.Title.IsVisible = False
myPaneT.XAxis.MajorTic.IsOutside = False
myPaneT.XAxis.MinorTic.IsOutside = False
myPaneT.XAxis.MajorGrid.IsVisible = True
myPaneT.XAxis.MinorGrid.IsVisible = True
myPaneT.Margin.All = 1
If count = lbMach.Items.Count - 1 Then
myPaneT.XAxis.Title.IsVisible = True
myPaneT.XAxis.Scale.IsVisible = True
myPaneT.Margin.Bottom = 10
End If
If count > 0 Then
myPaneT.YAxis.Scale.IsSkipLastLabel = True
End If
myPaneT.YAxis.MinSpace = 20
myPaneT.Y2Axis.MinSpace = 20
Dim dt As DataTable = ItemsByMachineDT(mach, dat)
Dim myCurve As BarItem
If dt.Rows.Count > 0 Then
Dim profName As String = Nothing
Dim timeDur() As Double
For Each dr As DataRow In dt.Rows
If profName = dr("PRO").ToString() Then
timeDur = {((Convert.ToDouble(dr("QTY")) / Convert.ToDouble(dr("MPM"))))}
Else
timeDur = {((Convert.ToDouble(dr("QTY")) / Convert.ToDouble(dr("MPM")) + Convert.ToDouble(dr("Time"))))}
End If
myCurve = myPaneT.AddBar(dr("JOB").ToString & " - " & dr("PRO").ToString(), timeDur, Nothing, BarColor(rowCount))
If MeiSettings.IsGradient = True Then
myCurve.Bar.Fill = New Fill(BarColor(rowCount), Color.White, BarColor(rowCount), 90.0F)
Else
myCurve.Bar.Fill = New Fill(BarColor(rowCount), BarColor(rowCount), BarColor(rowCount), 90.0F)
End If
rowCount += 1
profName = dr("PRO").ToString()
Next
End If
myPaneT.YAxis.MajorTic.IsBetweenLabels = True
myPaneT.YAxis.Type = AxisType.Text
myPaneT.BarSettings.Type = BarType.Stack
myPaneT.BarSettings.Base = BarBase.Y
master.Add(myPaneT)
count += 1
Next
zgc.IsShowPointValues = True
Using g As Graphics = Me.CreateGraphics()
master.SetLayout(g, PaneLayout.SingleColumn)
master.AxisChange(g)
End Using
End Sub

Answer 1

to get control for each GraphPane :
GraphPane temp = zgc.MasterPane.PaneList.ElementAt(ind); //ind => index of the graphpane in zedgraphcontrol
to set static height n width ZedgraphControl :
zgc.Size = new Size(Width,Height);
to set visibility of scrollbar ZedgraphControl :
zgc.IsShowHScrollBar = true;
zgc.IsShowVScrollBar = true;