Key Navigation in ULCTable

Hi,

 

In my applilcation i have ULCTable to show the records from database.

this ULCtable contains totally 6 columns.

1  -  Combobox ediotor

2 -    textfield editor

3 -   non editable

4 -   textfield editor

5 -    non editable

6  -  Combobox ediotor

 

Without mouse i want to navigate using keyboard.

If i have all the column as textfield editor its working fine.

 

Thanks

Karthick