Do you have multiple appdomains involved? Are you sharing a .NET object between TestStand and LabVIEW? What versions of TestStand and LabVIEW are you using?
Based on the error you are getting it sounds like the problem is that an exception object is being thrown across appdomains, but that object (your's?) is not correctly implemented to support this (it must be serializable for this to work). Here's an example of how to implement an exception object that supports serialization:
[Serializable]
public class MyExceptionClass : Exception
{
private readonly int _errorCode;
public MyExceptionClass(int errorCode)
{
_errorCode = errorCode;
}
public MyExceptionClass(string message, int errorCode) : base(message)
{
_errorCode = errorCode;
}
public MyExceptionClass(string message, Exception innerException, int errorCode)
: base(message, innerException)
{
_errorCode = errorCode;
}
// Needed so that deserialize works when passing object across appdomain boundries.
[SecuritySafeCritical]
protected MyExceptionClass(SerializationInfo info, StreamingContext context)
: base(info, context)
{
_errorCode = info.GetInt32("MyExceptionClass._errorCode");
}
// Needed so that deserialize works when passing object across appdomain boundries.
[SecurityCritical]
public override void GetObjectData(SerializationInfo info, StreamingContext context)
{
info.AddValue("MyExceptionClass._errorCode", _errorCode);
// Let base class do its work.
base.GetObjectData(info, context);
}
}
Hope this helps,
-Doug
