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Chart object can't be created in code after a few successful try.


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I'm trying to use the code below to dynamically generate a byte array image. My web page have two or thress charts. After load this page for a couple of times ( the first few times are fine), the application will stop at the first line and myChart couldn't be created. There's no error can be caught by "Try.. Catch". I have to restart IIS (5.1 on windows XP).

Dim myChart As New SoftwareFX.ChartFX.Internet.Server.Chart

myChart.Export(SoftwareFX.ChartFX.Internet.Server.FileFormat.Png, memorystream)

 Does anyone know the reason for the problem?



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