arbazpathan 0 Newbie Poster

i have 2 fields in my one table of my database one is "prod_name" and other is "vendor_name"
i want to create a web service. Now on my web form Product_name and vendor_name are both dropdownlists. I want the function of my web service should be such that whenever i select any one item of product_name list then all the corresponding vendor_names present in my database should be added in my vendor_name list.

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