Uncatcheable exception from MethodInfo.Invoke

Question

I have this code which Invokes a MethodInfo:

try
{
     registrator.Method.Invoke(instance, parameters);
}
catch{
    registrator.FailureType = RegistratorFa         


        

Answer 1

I think the problem is that you are expecting a specific exception type, maybe IOException or something, but actually MethodInfo.Invoke() will throw a TargetInvocationException:

try
{
     registrator.Method.Invoke(instance, parameters);
}
catch (TargetInvocationException tie)
{
    // replace IOException with the exception type you are expecting
    if (tie.InnerException is IOException)
    {
        registrator.FailureType = RegistratorFailureType.ExceptionInRegistrator;
        registrator.Exception = tie.InnerException;
    }
    else
    {
        // decide what you want to do with all other exceptions — maybe rethrow?
        throw;
        // or maybe unwrap and then throw?
        throw tie.InnerException;
    }
}