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 SPC Control Chart Tools for .Net
 Stack Overflow in ParetoChart		  New Topic  Reply to Topic
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chrism

USA
3 Posts
Posted - 26 Apr 2013 :  11:34:16  Show Profile  Reply with Quote
I am getting a stack overflow exception (An unhandled exception of type 'System.StackOverflowException' occurred in QCChart2DNet.dll) when attempting to build a pareto chart where all values are zero. If there are non-zero values the chart builds correctly.

It should be reproducible by doing a

Me.AddCategoryItem(0, "Category 1")
Me.AddCategoryItem(0, "Category 2")

and then attempting to build the chart.

I will handle this case in my code before I attempt to BuildChart, but just wanted to put it out there in case anyone else gets this.

Thanks,
Chris

quinncurtis

1586 Posts
Posted - 26 Apr 2013 :  11:45:21  Show Profile  Reply with Quote
The Pareto Chart by definition has to divide each value by the sum of all values in order to produce the cumulative percent value. So if you feed it invalid data (sum of all values equals 0) the results create a divide by 0 down the line.
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