Skip to main content
Dynamics 365

Quick and easy debugging in AX 7

This purpose of this blog is to show how you can get quickly get started with debuggingin AX7, specifically by showing how you can debug an error message issued from AX.

So, let’s begin !

Imagine you are posting a Bank journal and you get the following error message upon posting ‘Currency EUR not allowed for account USMF OPER’

You would like to know the logic behind this error message, but need to trace in the code where it was issued from

Blog1

We will use a classic debugging technique known from AX 2012 to demonstrate how this can be done quickly and easily, by inserting a breakpoint on the Info class to enable the debugger to track down in the code where the error is generated from.

These are the steps

  1. Start Visual Studio as ‘Administrator’

Blog2

2.  Go to the Application explorer, go to the ‘Code’ node, select ‘Classes’ and locate the ‘Info’ class

Blog3

On the ‘Info’ class rightclick and select ‘View code’

Blog4

In the window that opens up, select the ‘Add’ method

Blog5

3. Insert your breakpoint on the ‘Add’ method by pressing ‘F9’

Blog6

 

4. Press ‘Debug’ from the toolbar and select ‘Attach to process’

Blog7

 

In the ‘Attach to process’ screen mark ‘Show processes from all users’ and then browse to
the process ‘w3wp.exe’

Blog8

Wait for the Symbols to load

Blog9

 

5. Once the symbols have loaded repeat the application procedure, eg. in this case we will post the journal again to generate the error message

Blog10

 

And note that almost immediately the debugger starts executing in Visual Studio

Blog11

I copy the call stack into Notepad and here I note especially the highlighted line as this is the line that is triggered just before the call to the Infolog code

Blog12

I can see that the error is triggered on the BankAccountTable, checkCurrency method on line 225 and I stop debugging

Blog13

I go to this code to study the method

 I open up the BankAccountTable and similar to as on the ‘Info’ class I select ‘View Code’ and open the method I am interested in

Blog14

Here naturally ‘checkCurrency’

Blog15

 

And  we can study the code that generated the error message

Naturally, you can use the same technique to insert breakpoints in other places of the code such as on ‘init’, ‘update’ and ‘insert’ methods etc

Happy debugging !