Import Product Master by code in Ax 2012

Hi All,

I would like to import Product Master by code from csv or excel file, i tried many ways by writing code, the product is getting created but am not able to release the product, I would like to import directly to released product, if any one could share the code , i would much appreciate.

I require only these fields,

Item Name,Item group,Item Model group,Invent Unit, Purch Unit, Sales unit,Storage dim group,Tracking dim group

Thanks,

Ansar.