Hristo, I had to copy your code into another solution to make it run.

I may be missing something but I do not see the behavior that you were trying to demostrate. Here are two screen shot. In one case the focus is on band 2 and in the second case the focus is on band 3 (the one with the special cells). In both case, the UI does not look any different.

See here http://i46.tinypic.com/2ihv8uv.png

Hello,

It seems that you are not subscribe for the InitializeRow, InitializeLayout, MouseEnterElement and MouseLeaveElement events (they are in your code but UltraGrid is not subscribed for them). On the attached video you could see how this code works.

Please let me know if you have any further questions.

Hello ,

Thank you for your feedback. Please feel free to contact with us, or to start new Forum thread or to open a support ticket in our system if you need any further assistance with Infragistics Components.

Thank you for using Infragistics Components.

For the last several days, I have not gotten around to going back to my prototype for the effort I had been seeking help. I am going to have to need more help for sure. 

Thanks for the followup Hristo! Your help so far has been invaluable. You will be hearing from me.

Hello, ­­­­­

I am just checking about the progress of this issue. Let me know If you need my further assistance on this  matter?

Thank you for using Infragistics Components.

Hello, ­­­­­

I am just checking about the progress of this issue. Let me know If you need my further assistance on this  matter?

Thank you for using Infragistics Components.

Hello,

 Have modified the sample, I have removed SelectedCellApperance and instead I have set SelectedTypeCell to None.

I hope that this will helps you.