Determines the tab order of the weblet on the form. The tab_index property value determines the tab order as follows:

1.  Objects with a positive tab_index are selected in increasing tab_index order (and in source order to resolve duplicates).

2.  Objects with a tab_index of zero or blank (the default) are selected in source order.

3.  Objects with a negative tab_index are omitted from the tabbing order.

Default value

Blank. The weblet is selected in source order.

Valid values

Blank or a valid numeric value.