User (Legacy) 2 Posted September 26, 2002 Report Share Posted September 26, 2002 We are expereincing a problem with the chart when all the data points are 0. The chart crashes with a "divide by zero" exception. We noticed that when using your data editor it works fine. We are using a custom data editor and do not understand why this is happening. Any suggestions? Thank you Bill Large Metavante Quote Link to post Share on other sites
User (Legacy) 2 Posted September 26, 2002 Author Report Share Posted September 26, 2002 additional info: - This only happens for Pie charts, Bar charts are ok with all 0 values. - I tried the constant Chart.Hidden for the value if it is set to 0 but still blows up with the same exception listed below. - When a data point value is updated by the user we always clear the chart data and reload all the values. "Bill Large" <largewi@wi.rr.com> wrote in message news:gTNqMeYZCHA.3136@webserver1.softwarefx.com... > We are expereincing a problem with the chart when all the data points are 0. > The chart crashes with a "divide by zero" exception. > > We noticed that when using your data editor it works fine. We are using a > custom data editor and do not understand why this is happening. Any > suggestions? > > Thank you > > Bill Large > Metavante > > Quote Link to post Share on other sites
Software FX 0 Posted September 26, 2002 Report Share Posted September 26, 2002 I tried the following: chart1.AxisY.ResetScale(); chart1.Gallery = Gallery.Pie; chart1.OpenData(COD.Values | COD.AllocHidden,n1,n2); for (j = 0; j < n2; j++) { for (i = 0; i < n1; i++) chart1.Value[i,j] = 0;} chart1.CloseData(COD.Values); And got no crash. Can you lease post/send some code that reproduces this problem -- FP Software FX, Inc. Quote Link to post Share on other sites
User (Legacy) 2 Posted September 26, 2002 Author Report Share Posted September 26, 2002 Ok here is the code that causes this: SoftwareFX.ChartFX.GalleryObj.Pie pie = null; pie = (SoftwareFX.ChartFX.GalleryObj.Pie)chart1.GalleryObj; pie.LabelsInside = false; chart1.PointLabelMask = "%l"; chart1.PointLabels = true; chart1.OpenData(SoftwareFX.ChartFX.COD.Values,1,5); chart1.Value[0,0] =0; chart1.Value[0,1] =0; chart1.Value[0,2] =0; chart1.Value[0,3] =0; chart1.Value[0,4] =0; chart1.Legend[0] = "1"; chart1.Legend[1] = "2"; chart1.Legend[2] = "3"; chart1.Legend[3] = "4"; chart1.Legend[4] = "5"; chart1.Point[0, 0].SeparateSlice = 0; chart1.Point[0, 1].SeparateSlice = 0; chart1.Point[0, 2].SeparateSlice = 0; chart1.Point[0, 3].SeparateSlice = 0; chart1.Point[0, 4].SeparateSlice = 0; chart1.Point[0, 0].Color = Color.Black; chart1.Point[0, 1].Color = Color.Wheat; chart1.Point[0, 2].Color = Color.Blue; chart1.Point[0, 3].Color = Color.Green; chart1.Point[0, 4].Color = Color.Aqua; chart1.CloseData(SoftwareFX.ChartFX.COD.Values); MemoryStream stream = new MemoryStream(); chart1.Export(FileFormat.Bitmap, stream); It appears that with PointLabels turned on and then trying to export the chart to a stream causes it to blow up. Quote Link to post Share on other sites
Software FX 0 Posted September 27, 2002 Report Share Posted September 27, 2002 Ok. It is the combination of Legends and all zero values what makes it crash, we will fix this in the next SP. -- FP Software FX, Inc. Quote Link to post Share on other sites
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