I need to change the bound list in a gridview combo box at runtime

Question

I have a grid view with a combobox column. What I need to do is change the the databound list in the combobox based on another cells value. Is this possible?

column 1=materialType......

column2=Color...this is my combobox

now if materialType=steel then I want the bound list for column to to show "steel colors" if it is plastic then I want the list to be "plastic colors" ect.....

the list in the gridview will be mixed so the bound combo list will need to change per row......

 

I hope I explained this well enough.