In my specific example I'm hiding some controls and setting the TabIndex property on others when a user clicks a button.
I want the TabIndex property to correlate with the left-right order in which the controls appear on the form. When I loop through the contols (For each ctl in me.controls...) they aren't returned in an order that I can determine. I know it's not alphanumeric by control name. I've named the controls PH1, PH2Average, PH3Min, PH4Max and the like which corresponds with their left to right order.