AppDomain.FirstChanceException and stack overflow exception

Question

I\'m using the FirstChanceException event to log details about any thrown exceptions.

static void Main(string[] args)
{
    AppDomain.CurrentDomain.FirstChanceEx         


        

Answer 1

Eventhough it is not a good way, in VB .NET you can prevent exception firing inside FirstChanceException event handler using "On Error Resume Next" statement, coming from VB 6. (I am not sure if C# has something similar) Additionally, you should prevent recursion on the event handler as mentioned here. Following is the sample code, seems to work as expected.

Sub Main(args As String())
    AddHandler AppDomain.CurrentDomain.FirstChanceException, AddressOf FirstChanceExceptionEventHandler
    Throw New Exception("Exception thrown in main.")
End Sub

Private Sub FirstChanceExceptionEventHandler(ByVal source As Object, ByVal e As FirstChanceExceptionEventArgs)
    On Error Resume Next

    Dim frames As StackFrame() = New StackTrace(1).GetFrames()
    Dim currentMethod As MethodBase = MethodBase.GetCurrentMethod()
    If frames IsNot Nothing AndAlso frames.Any(Function(x) x.GetMethod() = currentMethod) Then
        Return
    Else
        Throw New Exception("Stackoverflow")
    End If
End Sub