C# session insert into database web service

Question

How do you session a gridview containing data (eg. ProductId, ProductName, ProductImage, ProductDescription, ProductQuantity, StockLevel) <-- the data is taken from supplier side using a web services by the supplier side and so the company consumed the web service to show all the products display..
However, for the product quantity, user can choose how many items they want to buy, using a dropdownlist filled with values (eg. 20,40,60..) dropdownlist is being added in gridview using item template and the values, just by setting the values in the edit template something..There is also an add to cart button. The add to cart button is a button to carry / session all the data chosen to the nxt page and be displayed into a gridview and then be inserted into the database using a web service.. How can I do all these?? I need steps and coding samples thanks!
Thanks for your help! If needed clarifications, I can send you an example of my ui. (:

Huimin · Answer

Ok thanks but I am still kinda confused.. Am I able to email you my ui design?

Bhushan Gawale · Answer

If you want to keep the user's cart data in the session then it will be better to create some Cart data class which will hold the data for each item and then you can keep the collection of the Cart class's objects in the session. and on the user cart's page - access the session to retrieve the filled in collection and initialize your data grid. I have created sample entity class which you can use to get started public class Cart { public string ItemName{get;set;} public string ItemPrice{get;set;} public string ItemQuantity{get;set;} }

Huimin · Answer

Yeah I want to store those items in user's cart using session. But right now I don't know how to do the dropdownlist to select the quantity items for the user to select? :( Thanks!

Bhushan Gawale · Answer

Firstly what is your thought behind putting the gridview in session? It is not a recommended approach to push your GUI objects in session variables instead you want to add that data in the session which is user specific e.g. items in user's cart.

C# session, insert into database, web service