Combobox in sap ui table

Hi Experts,

I have a requirement where i need to display a combox as one of the column of the table. I am using sap ui table and sap ui commons combobox for my approach. The combox values are going to be large (around 500). Since Combo box values are large i have requirement to call OData service and load the combo box when the user clicks on the combo box, not before that. I have tried an approach by using cellclick and calling a function to load combo box values, but not able to bind the combo boxes in table rows properly. I have also found the combo box id's are repeating as it is in the table.

Could you please suggest me how to approach for my requirement correctly.

Thanks in Advance,

Imran