most easy way to do such thing use binary idea as Askold told you in his post: where
and so on...
then do your comparison to know each value of enumerator you want but be careful in such number like 4: 0011 when you and with it can retrieve bot A, and B in such case use number in such way so you can distinct between
A: 0000 0001 = 1
B: 0000 0010 = 2
C: 0000 0100 = 4
Why not use a switch statement? Make a variable that can contain the value of your Enum, pass that as a parameter of the method, and then use a switch statement to evaluate the value of that variable in the method... Why would that not work?
For Each ctrl As Control In Me.Controls("pnlMainPanel").Controls
If ctrl.GetType Is GetType(System.Windows.Forms.Panel) Then
For Each subCtrl As Control In ctrl.Controls
If subCtrl.GetType Is GetType(System.Windows.Forms.TextBox) Then
If subCtrl.GetType Is ...