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Change Series Orientation


silken_solitude
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Hey Frank,

Thank for the quick reply!

I tried what you suggested but Im getting an error.  Heres a snippet of my code.

 On Timer tick:

  'Plot on Chart
  'Switch real-time styles once buffer is full
  If nOffset = BufferSize Then
  dataChart.RealTimeSettings.Style = SoftwareFX.ChartFX.RealTimeStyle.NoWaitArrow
  dataChart.Refresh()
  End If

  ''Set Communication Channel styles
  ''These COD values instruct Chart FX about the Realtime settings
  ''the chart, values and legend.
  Dim nCOD As SoftwareFX.ChartFX.COD
  nCOD = SoftwareFX.ChartFX.COD.XValues Or SoftwareFX.ChartFX.COD.RealTime
  nCOD = nCOD Or SoftwareFX.ChartFX.COD.ScrollLegend

  ''Add a point for each sereis to the right of the chart
  ''Using the legend property, set the legend values

  dataChart.OpenData(COD.XValues Or COD.AddPoints, 2, 1)

  dataChart.XValue(1, 0) = dataPoint
  dataChart.Legend(0) = Str(nOffset + 1)
  dataChart.CloseData(nCOD)
  nOffset = nOffset + 1

 

The Error:

System.NullReferenceException was unhandled
  Message="Object reference not set to an instance of an object."
  Source="ChartFX"
  StackTrace:
at SoftwareFX.ChartFX.DataArray.get_Item(Int32 index)
at SoftwareFX.ChartFX.17.BeginLoop()
at SoftwareFX.ChartFX.17.I3(IGraphicsEx 1N5)
at SoftwareFX.ChartFX.Chart.DS(17 1CH, IGraphicsEx 1CI, Rectangle& 1CJ, Int32& 1CK)
at SoftwareFX.ChartFX.Chart.DR(PaintBar 1CE, IGraphicsEx 1CF, Rectangle& 1CG)
at SoftwareFX.ChartFX.0X.OnPaint(PaintEventArgs e)
at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer, Boolean disposeEventArgs)
at System.Windows.Forms.Control.WmPaint(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at WeatherBalloonOperatorInterface.frmMDIContainer.Main() in C:\Project\Inco\WeatherBalloon\WeatherBalloonOperatorInterface\frmMDIContainer.vb:line 20
at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
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