prayaggandhi

Also please note that.. This only happens on Windows 7 and Windows Vista

I am using version 6.2.3188.26800 Thanks, Prayag

Frank, Attached is the sample app that reproduces the issue on Windows 7... Please navigate between Exmaple 1 and Exmaple 2 code few times and you should see the exception... Thanks. Prayag

Something interesting happened when I was browsing ChratFX 6.2 resource center on my computer. I got the exact same exception(Null reference exception) when I navigated to example Annotation Group Sample under Annotations in Interactive Samples. I have been trying to figure out why I get this exception in my application for long time now. Hope this gives you enough information to take it to your developers. I have attached the screen shot of the exception. Please review it and let us know what the fix is

Dear SoftwareFX, We are using ChartFX for .NET version 6.2 with all the latest updates in our application. We have been struggling with the following error for a year now and we cannot seem to trace the problem. Based on exception we know that it's an internal error to ChartFX. It is expecting us to supply something concrete and we are not doing that. Please note that though this exception only happens on Windows 7 and Windows Vista. On Windows XP we never see this issue. No code change happens between different versions. Here is the stack trace of an error and an exception. Any help on this issue is greatly appreciated. ************** Exception Text ************** System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object. at SoftwareFX.ChartFX.Annotation.AnnotationList.0O(IGraphicsEx AQ, Rectangle AR, Boolean AS, Boolean AT, Int32 AU, Int32 AV) at SoftwareFX.ChartFX.Annotation.AnnotationX.24(IGraphicsEx F3, Rectangle F4, Boolean F5, Int32 F6, Int32 F7) --- End of inner exception stack trace --- at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at SoftwareFX.ChartFX.ExtensionManager.MI(19 2CA, Enum 2CB, Object[] 2CC) at SoftwareFX.ChartFX.ChartCore.EP(1R 1T1, Boolean 1T2, Boolean 1T3) at SoftwareFX.ChartFX.ChartCore.EO(1R 1SY, Rectangle& 1SZ, Int32& 1T0) at SoftwareFX.ChartFX.ChartCore.EN(PaintBar 1SV, IGraphicsEx 1SW, Rectangle& 1SX) 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.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) Thanks,

Hi Juan, Thanks for the quick reply. Here is the code... Sub Routine That draws the chart Public Sub DrawCharts(ByVal uDate As String) If mLocked Then Return Try GetAdditionInfo() poly = Nothing CurrentDate = uDate UserPointSerie = CInt(IIf(UserPoints.Count > 0, 1, 0)) 'Chart.ClearData(ClearDataFlag.AllData) Chart.Extensions.Clear() ClearChartStuff() 'ClearChart() Try Dim obj As Object = CType(Graph.Axis(1), snAxis).curves(0) Catch tEx As Exception MsgBox(tEx.ToString()) Exit Sub End Try ' Chart.Style = ChartStyle.All Chart.DataEditor = IIf(mWorkNormalize, False, Graph.DataEditor) Chart.ShowTips = True Chart.Highlight.Enabled = bHighlight Chart.ToolBar = False Chart.Gallery = Gallery.Lines SetAttributes() PassData() Set3DView() ' SetAttributes() DrawBorder() DrawBackground() DrawBorder() DrawTitles() DrawLegend() DrawGridLines() DrawAnnotations() DrawLines() DrawStripes() DrawTrendPoints() DrawDynamicAnnotations() Catch ex As Exception Console.WriteLine("Epa: " & ex.Message) End Try UpdateToolbar() End Sub Sub Routine to clear chart. Public Sub ClearChartStuff() Chart.ClearData(ClearDataFlag.Data) 'Chart.ClearData(ClearDataFlag.Extensions) Chart.ClearData(ClearDataFlag.IniValues) Chart.ClearData(ClearDataFlag.Stripes) Chart.ClearData(ClearDataFlag.XValues) Chart.ClearData(ClearDataFlag.Values) 'Chart.ClearData(ClearDataFlag.ConstantLines) Chart.ClearData(ClearDataFlag.Labels) 'Chart.ClearData(ClearDataFlag.ColorsAndPatterns) 'Chart.ClearData(ClearDataFlag.Commands) Chart.ClearData(ClearDataFlag.Other) Chart.ClearData(ClearDataFlag.Strings) Chart.ClearData(ClearDataFlag.Titles) End Sub Following Sub Routine draws the Annotations... Public Sub DrawAnnotations() Try If Not (Graph.AnnotationsShow Or Graph.StickyNoteShow) Then Exit Sub End If Dim i As Integer '#If _cfx70 Then 'Dim annotations As Annotations = New Annotations '#Else Dim annotations As AnnotationX = New AnnotationX '#End If Dim balloon As AnnotationBalloon Dim note As snStickyNote Dim anno As snAnnotation Dim text As String Dim x1, x2 As Double 'poly = New AnnotationPolygon '' this hold the polygon to draw Lines and Rects when zooming 'jnaPts = New ArrayList 'poly.Border.Color = Color.Black 'poly.Border.Style = Drawing2D.DashStyle.Dash 'poly.Border.Width = 0 'annotations.List.Add(poly) If Graph.StickyNoteShow Then For i = 0 To Graph.StickyNotes.Count - 1 Try note = Graph.StickyNotes(i) If note.Text <> "" Then text = note.Text text = ReplaceText(text) balloon = New AnnotationBalloon balloon.Text = text balloon.Shadow = 3 note.balloon = balloon If note.ValueOption.StartsWith("P") Then balloon.Left = CInt(note.x) balloon.Top = CInt(note.y) Else Dim x As Double If bIsDate Then x = jnaUtil.DateFns.StringToDate(note.x).ToOADate Else x = jnaUtil.StringFns.Number(note.x, 0.0) End If balloon.Attach(x, jnaUtil.StringFns.Number(note.y, 0.0)) End If balloon.TextColor = plotStuff.GetColor(note.TextColor) balloon.TailCorner = CInt(plotStuff.TailPosition(note.TailPosition)) #If Not _cfx70 Then balloon.ArrowFactor = CInt(plotStuff.TailSize(note.TailSize)) #End If balloon.Border.Color = System.Drawing.Color.Black balloon.Color = plotStuff.GetColor(note.BGColor) balloon.SizeToFit() annotations.List.Add(balloon) End If Catch e As Exception MsgBox("jna 111 " & e.Message) End Try Next i End If Dim label As AnnotationText If Graph.AnnotationsShow Then Dim bWidth As Boolean For i = 0 To Graph.Annotations.Count - 1 anno = CType(Graph.Annotations(i), snAnnotation) Try If anno.Text.StartsWith("OVS:") And anno.X1.StartsWith("OVS:") And anno.Y1.StartsWith("OVS:") Then Dim n, j As Integer Dim dt As DataTable Dim dc As New DataCenter.DataCenter.clsDC Dim vText, vXValue, vYValue As String Dim xx, yy, ttext As Object vText = anno.Text.Substring(4) vXValue = anno.X1.Substring(4) vYValue = anno.Y1.Substring(4) dt = dc.SelectData("", vText, vXValue, vYValue) n = dt.Rows.Count If n > 0 Then For j = 0 To n - 1 Try label = New AnnotationText anno.label = label xx = dc.GetValue(dt, vXValue, j, Now) yy = dc.GetValue(dt, vYValue, j, 0.0) ttext = dc.GetValue(dt, vText, j, "") label.Text = ttext label.TextColor = plotStuff.GetColor(anno.Color) label.Color = System.Drawing.Color.Transparent label.Border.Color = System.Drawing.Color.Transparent label.Orientation = plotStuff.AnnoOrientation(anno.Orientation) label.Align = StringAlignment.Near label.WordWrap = anno.WordWrap If bIsDate Then x1 = jnaUtil.DateFns.StringToDate(xx).ToOADate Else x1 = xx End If label.SizeToFit() label.Attach(x1, yy) annotations.List.Add(label) Catch End Try Next End If Else label = New AnnotationText anno.label = label label.Text = ReplaceText(anno.Text) label.TextColor = plotStuff.GetColor(anno.Color) label.Color = System.Drawing.Color.Transparent label.Border.Color = System.Drawing.Color.Transparent label.Orientation = CInt(plotStuff.AnnoOrientation(anno.Orientation)) label.WordWrap = anno.WordWrap bWidth = True If anno.x2 = "" Then label.Width = 200 label.Height = 100 bWidth = False End If If anno.ValueOption.StartsWith("P") Then label.Left = jnaUtil.StringFns.Number(anno.X1, 0) label.Top = jnaUtil.StringFns.Number(anno.Y1, 0) If bWidth Then label.Width = jnaUtil.StringFns.Number(anno.x2, 0) label.Height = jnaUtil.StringFns.Number(anno.Y2, 0) End If Else If bIsDate Then x1 = jnaUtil.DateFns.StringToDate(anno.X1).ToOADate If bWidth Then x2 = jnaUtil.DateFns.StringToDate(anno.x2).ToOADate Else x1 = anno.X1 x2 = anno.x2 End If If bWidth Then label.Attach(x1, jnaUtil.StringFns.Number(anno.Y1, 0.0), x2, jnaUtil.StringFns.Number(anno.Y2, 0.0)) Else label.Attach(x1, jnaUtil.StringFns.Number(anno.Y1, 0.0)) End If End If label.SizeToFit() annotations.List.Add(label) End If Catch e As Exception MsgBox("show ") End Try Next End If mUserAnnotations = annotations.List.Count 'The following might not be necessary after we upgrade to Chart FX 6.2 version 6.2.3188.* ' looking to fix vista If mUserAnnotations > 0 Then Chart.Extensions.Add(annotations) End If Catch ex As Exception MsgBox(ex.ToString()) End Try End Sub-

Were you able to find solution to this problem? It's very convenient that SoftwareFX has nothing to say on this.

Randy, We traced this issue to Annotations. If we add annotations to Chart in Windows Vista the chart throws internal exception when rendering. I hope this helps. Let me know if you can find some solution to this problem. Thanks, Prayag

Randy, We are rendering the chart as an image. Right now our software only runs on Windows XP. We are trying to upgrade it for Windows Vista and for Windows 7. And we have run into problem with those.. Thanks, Prayag

Hi Randy, Sorry for late message. But yes the behavior only happens in Vista and we want to find out how we can prevent it.. Thanks, prayag

Hi Randy, So when does Chart FX 6.2 shows Red X through the chart. This happens a lot on Windows Vista machine. None of my chart shows up properly on it. Thanks, Prayag

Hi Randy, So when does Chart FX 6.2 shows Red X through the chart. This happens a lot on Windows Vista machine. None of my chart shows up properly on it. Thanks, Prayag

This is a repost again. I have asked this question before but have not received any answer yet. Would you please let me know if Chart FX 6.2 is compatible with Vista and Windows 7. Thanks, Prayag Gandhi

When I set my AxisY Inverted property to true and set the LogBase to 10 Chart looses Labels and tick marks for Y axis. Is it a known bug? Is there a workaround for this problem? Any help is appreciated. I tried this on Chart in the design mode and programmatically and same results both times. Thanks,Prayag Gandhi