Reading list from dll to X++. How to resolve invalid cast exception error in x++.

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Posted on by PJ JohnPaul

Hi All,

In dll,

public class ErrorMessage
{
public string type { get; set; }
public string code { get; set; }
public string category { get; set; }
public string message { get; set; }
public string status { get; set; }
}
public List<ErrorMessage> errorMessages { get; set; }

in ax,

CLRObject ListError = new CLRObject(/System.Collections.Generic.List`1[System.Object]/);
ClrObject enumeratorError;

IT_ZatcaIntegration.ErrorMessage errorMessage = new IT_ZatcaIntegration.ErrorMessage();

if(ListError)
{
enumeratorError = ListError.GetEnumerator();

while (enumeratorError.MoveNext())
{
// errorMessage = enumeratorError.get_Current();

integrationLineLog.ErrorCategory = errorMessage.get_category();
integrationLineLog.ErrorCode = errorMessage.get_code();
integrationLineLog.ErrorMessage = errorMessage.get_message();
integrationLineLog.ErrorStatus = errorMessage.get_status();
integrationLineLog.ErrorType = errorMessage.get_type();
integrationLineLog.insert();
}
}

while reading the list from dll in ax i am facing the below error message.
Could anyone please help me on this to resolve this issue?

All responses (3)

Answers (0)

Martin Dráb 229,918 Most Valuable Professional on at

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Reading list from dll to X++. How to resolve invalid cast exception error in x++.

Okay, so it's about AX 2012. And I guess the difference isn't between a runnable class and a batch, but between running the code as X++ or CIL. Note that you can test such things; you can run code in CIL without a batch.

Have you generated CIL after compiling X++?

Please share your actual code, because your screenshot shows that the exception is thrown by a call that you don't have in code that you shared before (and it wouldn't ever reach the line of code).
PJ JohnPaul 93 on at

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Reading list from dll to X++. How to resolve invalid cast exception error in x++.

Hi @martin,

Thanks for your reply.

Error is throwing in the highlighted line.
This same code working fine when i am running from runnable job, but in bacth processing i am facing the issue.

Ax version :
Martin Dráb 229,918 Most Valuable Professional on at

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Reading list from dll to X++. How to resolve invalid cast exception error in x++.

Which line in 785? Which version of AX is it?

I see you created a new list and iterate its elements, but there is never any if you never add any element there.

Avoid generic types if possible; .NET Interop doesn't support them.

Reading list from dll to X++. How to resolve invalid cast exception error in x++.

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Reading list from dll to X++. How to resolve invalid cast exception error in x++.

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