[RESOLVED] What Sub/Function/Block of Code Produced Error

I'm creating some software in visual basic 2005 .Net. My software keeps a log file. If the applications encounters an error, it writes to this log file. Is there a way I can easily produce what sub, function, or block of code that produced the error?

Example:
Sub MessageUser()
Try
msbox("Hello")
Catch
msgbox("I want to be able to know MessageUser is the sub that encountered the error.")
End try

End Sub

Since msgbox is spelled incorrectly this will produce an error. I want to know what sub caused the error, in this case MessageUser.

Try this

Code:

---

Public Shared Function GetCurrentMethodName() As String
            Dim frame As New StackFrame(1, True)
            Return frame.GetMethod().ReflectedType.Name & "." & frame.GetMethod().Name
End Function

---

Code:

---

Sub MessageUser()
Try
msbox("Hello")
Catch
Dim message As String = "Error occurred in : " & GetCurrentMethodName()
msgbox(message)
End try

---

You will need to add an Import statement for System.Diagnostics

Also, remember that you are using VB.NET. You should be using MessageBox.Show(...) and not MsgBox(...).

Quote:

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Originally Posted by dlarkin77

Try this

Code:

---

Public Shared Function GetCurrentMethodName() As String
            Dim frame As New StackFrame(1, True)
            Return frame.GetMethod().ReflectedType.Name & "." & frame.GetMethod().Name
End Function

---

Code:

---

Sub MessageUser()
Try
msbox("Hello")
Catch
Dim message As String = "Error occurred in : " & GetCurrentMethodName()
msgbox(message)
End try

---

You will need to add an Import statement for System.Diagnostics

---

Thanks for your help. I provides me the name of the method that called the sub, but not the sub itself. It gave me the load method of the form, which is the method that actually calls it. Anyway to get the name of the sub? That will be a lot more specific and helpful.

Try this :

Code:

---

Imports System
Imports System.Reflection

Public Class Form1

    Private Sub GetCurrentMethodName()
        Dim sf As StackFrame = New StackFrame()
        Dim mb As MethodBase = sf.GetMethod()
        MessageBox.Show(mb.Name)

    End Sub

    Private Sub WhoCalledTheMethod()
        Dim st As StackTrace = New StackTrace()
        Dim sf As StackFrame = st.GetFrame(1)
        Dim mb As MethodBase = sf.GetMethod()

        MessageBox.Show("I was called by: " & mb.Name)
    End Sub


    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        GetCurrentMethodName()

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        WhoCalledTheMethod()
    End Sub

---

Button 1 will show "GetCurrentMethodName" inside a messagebox, which is the current executing method.

Button 2 will show "Button2_Click()", the event that called the procedure.

You must make sure to include the Import for System.Reflection, else your MethodBase will not work :)

I hope it helps! :D