So I have a pretty basic WebDialogWindow that I'm showing in Modal mode, which contains an HTML table which in turn has some asp:Label and asp:Textbox controls; and below that there are OK and Cancel asp:Buttons.

The asp:TextBox controls have their TabIndex attributes set to incrementing values (1, 2, 3, 4, etc).

And in Chrome and IE8 I can tab between the textboxes fine.  

BUT, in IE9, it doesn't work.  Instead the first time I hit tab, the focus shifts to the buttons and then will never return to the textboxes above them.

When I look at the Source that's being displayed in the IE9 browser, the input tags for the textboxes do have the tabindex values set correctly.

SO, in summary:

The Tabindex works as expected in Chrome and IE8 for controls on a WebDialogWindow being displayed modally.

It doesn't work in IE9.

Thoughts?

Thanks!