Executing textbox TextChanged code without changing the text

[Persist]

I want to execute my “textbox changed” code (1) when I change the code in my text box, and (2) in other places in my code.

I would like to do this without creating a separate subroutine, as I have done in the following example:

Sub GetIterMax()
    ‘ My code for getting the maximum number of iterations
End sub

Private Sub TbxIterMax_TextChanged(sender As System.Object, e As EventArgs) Handles tbxIterMax.TextChanged
        GetIterMax()
End Sub

Chat AI suggested two things that generated error messages. They were:

tbxIterMax.OnTextChanged(New EventArgs())
Error BC30390” TextBoxBase.Protected Overrides Sub OnTextChanged(e As EventArgs)' is not accessible in this context because it is 'Protected'.

RaiseEvent tbxIterMax.TextChanged(tbxIterMax, New EventArgs())
Error BC30676: tbxIterMax is not an event of form1

Let’s see if humans can do better.

I’m using Visual Basic in Visual Studio 2022.
Windows 11