doughnut chart with number over one billion

[Seo]

Hi

I am trying to draw a doughnut chart with some numbers that exceed one billion.
Binding dataseries to doughnut chart, overflow exception has been thrown.
The overflow exception says that value was either too large or too small for an Int32 in English.
Is there any way to overcome this?

I think dataseries contains number over one billion seems to be unable to bind to doughnut chart.
The others are fine with same dataseries, e.g. bar or spline.

I have attached the file with screenshots.

The codes are following

※Adding dataseries to doughnut chart

private double[] bufferGetsForChart = new double[2];

bufferGetsForChart[0] = Convert.ToDouble(((InstantShotInfo)grdInstantShotList.SelectedItem).BUFFER_GETS);
bufferGetsForChart[1] = Convert.ToDouble(((InstantShotInfo)grdInstantShotList.SelectedItem).DISK_READS);

bufferGetsForChart[1] = bufferGetsForChart[0] - bufferGetsForChart[1];

DataSeries doughnutSeriesBufferGets = GetPieData(1);

doughnutSeriesBufferGets.Definition = new DoughnutSeriesDefinition();
doughnutSeriesBufferGets.Definition.InteractivitySettings.HoverScope = InteractivityScope.Item;
doughnutSeriesBufferGets.Definition.InteractivitySettings.SelectionScope = InteractivityScope.Item;
doughnutSeriesBufferGets.Definition.InteractivitySettings.SelectionMode = ChartSelectionMode.Single;

((DoughnutSeriesDefinition)doughnutSeriesBufferGets.Definition).LabelSettings.LabelOffset = 0.7d;

if (bufferGetsForChart[0] == 0 && bufferGetsForChart[1] == 0)
{
    doughnutSeriesBufferGets.Definition.ItemLabelFormat = itemLabelFormatZero;
}
else
{
    doughnutSeriesBufferGets.Definition.ItemLabelFormat = itemLabelFormat;
}

chtBufferGets.DefaultView.ChartArea.DataSeries.Clear();
chtBufferGets.DefaultView.ChartArea.DataSeries.Add(doughnutSeriesBufferGets);
chtBufferGets.DefaultView.ChartArea.SmartLabelsEnabled = false;
chtBufferGets.DefaultView.ChartLegend.Header = string.Empty;

chtBufferGets.DefaultView.ChartTitle.Content = MaeStrings.dbo_BUFFER_GETS + ": " +
                                               (Convert.ToDecimal(bufferGetsForChart[0])).ToString(numberFormatString) + "(100%)";

chtBufferGets.DefaultView.ChartLegend.LegendItemMarkerShape = MarkerShape.Circle;

※Adding data to dataseries

private string[] bufferGetsColumn = new string[] { MaeStrings.dbo_DISK_READS, MaeStrings.prb_BUFFER };

for (int i = 0; i < bufferGetsColumn.Length; i++)
{
    series.Add(new DataPoint { YValue = bufferGetsForChart[i] });

    DataPoint dataPoint = series[i];
    dataPoint.LegendLabel = bufferGetsColumn[i];
}

Thanks in advance.

[Yavor]

Hi Seo,

This issue has been reported by other users and fixed. I have created a small application that does not crash using the latest binaries. Can you please try the application in your environment to check if it can reproduce the problem? Then get the latest binaries from the LIB and try again and see if the problem persists.

Regards,
Yavor Ivanov
the Telerik team

[Seo]

Hi Yavor

In the latest version of silverlight libraries, the exception has become not to occur.
I definitely downloaded the latest version and I thought that I installed,
but it is not replaced by a new version in VS2010 automatically.

Thank you very much.

[Yavor]

Hello Seo,

Visual Studio adds reference usually to some specific version of the referenced assemblies in GAC.

<Reference Include="Telerik.Windows.Controls, Version=2010.2.1109.1040, Culture=neutral, PublicKeyToken=5803cfa389c90ce7, processorArchitecture=MSIL">

When you download the latest version it is recommended to remove the references and add them again to your projects and also Clean & Rebuild.

I am glad that the issue you were facing is now resolved.

Regards,
Yavor Ivanov
the Telerik team