I found the problem in my code. Thanks. It is now working.

Hello Marc,

Thank you for your update on this matter. I have updated to .NET 4.8 and I was able to reproduce the behavior you are seeing as well. It seems that this may be something specific to this version of .NET Framework, but setting the Mode to OneWay does appear to resolve it.

Regarding the new XamlParseException you are seeing, this sounds like a syntax error in your XAML that is trying to add something other than one of the XamDataChart axes to the Axes collection. I’d be curious to know what line 209 and the surrounding code of your XAML looks like, as this error appears to be calling that out, specifically.

Please let me know if you have any other questions or concerns on this matter.

Thanks for checking.

I thought the problem was the "Resource is never used " message I am seeing but I see the same message with your project and it is running OK.

This is the exception I am getting

System.Windows.Markup.XamlParseException: 'A TwoWay or OneWayToSource binding cannot work on the read-only property 'Item' of type 'Infragistics.Controls.Charts.AxisItemDataContext'.'

I am using .net Framework 4.8. So I changed your project to use it also.

Now Your project sends the same error.

I have added , Mode=OneWay to the Item binding and it is fixing this error in your project and in mine. :-)

However I now see an other error in my project.

System.Windows.Markup.XamlParseException: ''Add value to collection of type 'Infragistics.Controls.Charts.AxisCollection' threw an exception.' Line number '209' and line position '22'.'

{"The value \"- \" is not of type \"Infragistics.Controls.Charts.Axis\" and cannot be used in this generic collection.\r\nParameter name: value"}

I am searching the cause for this now.

Thanks

Hello Marc,

I have changed the assemblies locally to target the latest service release of 15.2 and 17.2 and I can confirm that it works with both versions. For reference, those specific versions are 15.2.20152.2212 and 17.2.20172.2217. Everything is still working as expected, which leads me to believe this may be something you are missing or something specific with the project are using?

Assuming you are not using the sample project I have provided directly, and are just trying to use code from it, would it be possible for you to please attach an isolated version of the sample you are using such that it reproduces the behavior you are seeing?

Please let me know if you have any other questions or concerns on this matter.

thanks for the quick response. We are currently using V15.2 of the XamDataChart dll. I know it old :-(

Can you check it is a 15.2 problem?

I think we can use 17.2 because some other dlls in the project are 17.2.

If it is a 15.2 problem, if I use 17.2, will it work?

Thanks again

Marc Samson

Agilent Technologies