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Histogram type error

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Our system sets chart type in Page_Load function. For all chart types we

used until now it worked well. Now we trying to use Histogram type. Form

contains histogram chart and submit button, which submits form and does

nothing. After second time button is pressed, form crashes with message:

[NullReferenceException: Object reference not set to an instance of an


SoftwareFX.ChartFX.Statistical.Server.BoxPlot.P(Int32 BH,

GalleryAttribute BI, Int32 BJ, PaintMarkBase BK)

SoftwareFX.ChartFX.Internet.Server.0S.DV(ChartCore 1KJ, IGalleryType 1KK)

SoftwareFX.ChartFX.Internet.Server.ExtensionManager.IP(ChartCore 1XJ)

SoftwareFX.ChartFX.Internet.Server.ChartCore.6R(Object 13L)

SoftwareFX.ChartFX.Internet.Server.ChartCore.7H(IPersistBase 14P)

SoftwareFX.ChartFX.Internet.Server.ChartCore.Import(FileFormat format,

Stream stream)

SoftwareFX.ChartFX.Internet.Server.ChartCore.Import(FileFormat format,

String fileName)

SoftwareFX.ChartFX.Internet.Server.Chart.LoadViewState(Object objState)

System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +136

System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +412

System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +412

System.Web.UI.Page.LoadPageViewState() +306

System.Web.UI.Page.ProcessRequestMain() +447

If Visual Studio Designer is used for setting chart control type, then

program does not crash (control creation code in InitializeComponent).

How to make program work correctly with chart type set in Page_Load


Code, used for chart type setting:

this.statistics1.Chart = this.Chart1;

this.statistics1.Gallery.Current =


Regards, Vita

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