Using a Class and WithEvents to detect changes in textboxes
<p>I have a userform in the VBE with 12 textboxes (1 for each month of the year). There's an additional textbox that is supposed to display the sum of the values in each of the first 12 boxes, updating and recalculating itself as the values in the other textboxes change.</p>

<p>Some help in implementing a solution to this problem is much appreciated.</p>

<p>The code I'm trying to implement is taken from the post at: </p>

<p><a href="https://stackoverflow.com/questions/24403121/vba-detect-changes-in-any-textbox-of-the-userform">VBA: Detect changes in any textbox of the userform</a></p>

<p>However I'm unsure what to put in the event section below of the class.</p>

<p>NB: This is my first attempt at using classes so I'm just learning.  </p>