yuvaratna

I have a Dataset Ds1 and dataset Ds2 , DS1 has Product_ID, product information and ds2 has Product_ID, product_type.

Sorry maybe it's DataTable instead of DataSet——For DataSet is a container that holds DataTables……

yuvaratna

for the matching product_id, I want to add the Product_tye column from ds2 to ds1 .

Not understand what you mean……Please show us your two tables' values and structures and what you want to gain in the end？

Reguards！