setting tab order but it is not working correctly?

My con开发者_StackOverflow社区tent page has a master page. In the content page I have specified a tab order, but it is not working correctly. After initial control in content page on pressing tab, control go to some controls that are coming from master page.

I even have seen master page tab order is not set there at all. Any idea please why it is happening? How to correct it?

Where does your tab index start? Try starting at 1. Also, you could assign a set of tab orders for that control, say 10-20 where you don't use those values on the masterpage.