Use of Tabbing Sequence
In general, field tab order should flow from top left to bottom right on a page. The flow should reflect the way the eye naturally scans information.
Specific guidelines are as follows.
- On a page with multiple levels, the tab order should follow the scroll level order, from Level 0 to Level 1, and so on.
- Non-columnar page: within a group box, the tab order should go from left to right on each line from top to bottom.
Columnar page: within a group box, the tab order should go from the top to the bottom of the first column, then from the top to the bottom of the second column, and so on.
Fields that share the same label should follow consecutively in the tab order from left to right. See the example of Expense Amount and Currency below.
On a page with scroll areas, the level 0 push buttons should always be placed at the beginning of the Level 0 tab order.
