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NullReferenceException' occurred in chartfx.annotation.dll at 6.2


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Hi,

Today, I installed the new ChartFX 6.2, my scattered chart works well

before, but suddenly doesn't work well at 6.2. Error message is

NullReferenceException' occurred in chartfx.annotation.dll , which is the

first excetpint, the cascaded excetion is

A first chance exception of type

'System.Reflection.TargetInvocationException' occurred in

system.windows.forms.dll Additional information: Exception has been thrown

by the target of an invocation.

My question is , is anything different from chartFX6.2 with previous verison

? or there is already having a patch to addrsss such annotation.dll crashing

? thx for help.

David

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Can you please export your chart to a file and post the chart ?

This would be the easiest way for us to duplicate this issue and find out

what's going wrong.

Regards,

JC

Software FX Support

"Yongshuai (David) Cui" <davidcui@gartmoreriverview.com> wrote in message

news:swcXIAgWEHA.3080@webserver3.softwarefx.com...

>

> Hi,

>

>

> Today, I installed the new ChartFX 6.2, my scattered chart works well

> before, but suddenly doesn't work well at 6.2. Error message is

> NullReferenceException' occurred in chartfx.annotation.dll , which is the

> first excetpint, the cascaded excetion is

>

> A first chance exception of type

> 'System.Reflection.TargetInvocationException' occurred in

> system.windows.forms.dll Additional information: Exception has been thrown

> by the target of an invocation.

>

> My question is , is anything different from chartFX6.2 with previous

verison

> ? or there is already having a patch to addrsss such annotation.dll

crashing

> ? thx for help.

>

> David

>

>

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JC,

Thanks! I will try to get the exporting chart.

I think you can reproduce it like the following :

1. making an annotation on any chart with the following txt

void makeChart(.....) {

SoftwareFX.ChartFX.Annotation.AnnotationX annot = new

SoftwareFX.ChartFX.Annotation.AnnotationX();

SoftwareFX.ChartFX.Annotation.AnnotationText tex = new

SoftwareFX.ChartFX.Annotation.AnnotationText();

annot.List.Add(tex);

Chart.Extensions.Add(annot);

tex.Text = "This label is clipped";

tex.DrawingArea = false;

tex.TextColor = System.Drawing.Color.Red;

tex.Color = System.Drawing.Color.Transparent;

tex.Border.Color =System.Drawing.Color.Transparent;

tex.Top = Chart.Height - 100;

tex.Left = Chart.Width - 130;

tex.SizeToFit();

}

The first time it might show well of the chart and annotation, next time,

you re-make the chart by calling the same routine. you will got the above

error I got. Not sure what is wrong. Remaking the chart on the same chart.

thx for the help.

David

"Software FX Support" <noreply> wrote in message

news:9BbHylsWEHA.2276@webserver3.softwarefx.com...

> Can you please export your chart to a file and post the chart ?

>

> This would be the easiest way for us to duplicate this issue and find out

> what's going wrong.

>

> Regards,

>

> JC

> Software FX Support

>

> "Yongshuai (David) Cui" <davidcui@gartmoreriverview.com> wrote in message

> news:swcXIAgWEHA.3080@webserver3.softwarefx.com...

> >

> > Hi,

> >

> >

> > Today, I installed the new ChartFX 6.2, my scattered chart works well

> > before, but suddenly doesn't work well at 6.2. Error message is

> > NullReferenceException' occurred in chartfx.annotation.dll , which is

the

> > first excetpint, the cascaded excetion is

> >

> > A first chance exception of type

> > 'System.Reflection.TargetInvocationException' occurred in

> > system.windows.forms.dll Additional information: Exception has been

thrown

> > by the target of an invocation.

> >

> > My question is , is anything different from chartFX6.2 with previous

> verison

> > ? or there is already having a patch to addrsss such annotation.dll

> crashing

> > ? thx for help.

> >

> > David

> >

> >

>

>

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> The first time it might show well of the chart and annotation, next time,

> you re-make the chart by calling the same routine. you will got the above

> error I got. Not sure what is wrong. Remaking the chart on the same chart.

> thx for the help.

The next time you run this code over the SAME chart ? If so, this is

incorrect you will be adding multiple annotation extensions to the chart.

If this is not the case and you are starting with a new chart every time, we

are unable to reproduce the problem here. Please provide with a repro case.

--

FP

Software FX

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