Question

I would like to catch an exception an tell if it was me that deliberately threw the error or something else like a runtime error (object not instance of an object).

try
{
    throw new Exception("throw this", "these can be many possible values");
}
catch (System.Exception ex)
{
    if (IThrew) // <--- how can i tell if i threw or not?
    {
        exReport = "one thing"; // <--- Should go in here in this example.
    }
    else
    {
        exReport = "another thing";
    }

    throw new FaultException<ExceptionReport>(exReport, new FaultReason(ex.Message), new FaultCode("Receiver"));

}

---

Clarification:

I need keep record of all the exceptions then at the end display them in an exceptions report (array of exceptions). This is part of a schema I am REQUIRED to follow. (so please don’t ask me to do it another way).

I have it all working great it outputs something like:

...
<soap:Detail>
<ows:ExceptionReport>
 <Exception exceptionCode="…" locator="…">
  <ExceptionText>…</ExceptionText>
 </Exception>
 <Exception exceptionCode="…" locator="…">
  <ExceptionText>…</ExceptionText>
 </Exception>
</ows:ExceptionReport>
</soap:Detail>
...

The problem is that when i’ll have a few errors already in my ExceptionReport, then a runtime error will occur.

But i’ve realized i’m going the wrong way about this… as Gary mentioned… i shouldn’t be using exceptions as flow control.

Answer 1

You can’t tell why an exception was thrown.

What you can do is create your own exception classes so you can catch them – these will be the exceptions thrown on purpose. That is, since you created the exception class, the framework is not going to throw these.

try
{
 // something
}
catch(MyCustomException ex)
{
   // Thrown by Application logic
}
catch(System.Exception ex)
{
   // Could by thrown by anything
}