Unhandled Exception in EXE but not in IDE.

[RichLee]

I have a VB .net application which raises an 'Unhandled Exception' when running as an exe. In the IDE the correct top-level error message is shown.

I have recreated the problem -


In module1.vb -

Sub Main
    Try
        Application.Run(New Form1)
    Catch ex As Exception
        MessageBox.Show("FATAL ERROR in Application")
    End Try
End Sub

Form1 has a single Button Control
Code in Form1.vb -

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Try
        Throw New Exception("Thrown Error!")
    Catch ex As Exception
        Throw New Exception("B1_Click error")
    End Try
End Sub

So, when the button is clicked, a message box should be displayed with the text 'FATAL ERROR in Application'. This works fine when running within the .Net IDE. However, when running the .exe - on the development PC or on another PC - a box is displayed saying that there was an unhandled exception. The exception which is unhandled is 'B1_Click error'.

Has anyone else seen this behaviour and how do I fix it?

 

[VBakias]

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
Throw New Exception("Thrown Error!")
Catch ex As Exception
Try
Throw New Exception("B1_Click error")
Catch ex As Exception
Msgbox("B1_Click error")
End Try
End Try
End Sub