I need an example of session with Objects example.

Question

Hi So far I have seen people using variable with session. I'd like to know how people use object in c# asp.net form with layering example. For example I have User user. I would like to know how the Session can be applied on User user when going thru a shopping cart. Hope to hear from someone soon. Thank you.

Tangara G · Answer

Hi Perhaps I have not been clear in my communication but what I am looking for specifically how to apply the Object Session Session that applies on the Datatype directly not the variable. So Users users UserOjb(users)session[userobj]; It has to be object-oriented way. Please give me example on how to use the Object Session that applies on the Datatype directly.

Vishal Jadav · Answer

Hi I have a working example. It might help you. void AddIngredient() { DataTabledt=CreateDataTableForIngredient; if (CurrentIngredientRowIndex==-1) { DataRowdr=dt.NewRow(); dr[ ingredientID ]=0; dr[ ingredientName ]=txtIngreName.Text; dr[ ingredientprice ]= float .Parse(txtIngrePrice.Text); dr[ NewToUpdate ]=1; dt.Rows.Add(dr); } else { DataRowdr=dt.Rows[CurrentIngredientRowIndex]; dr[ ingredientName ]=txtIngreName.Text; dr[ ingredientprice ]= float .Parse(txtIngrePrice.Text); dr[ NewToUpdate ]=1; dt.AcceptChanges(); } dgIngredient.DataSource=dt; dgIngredient.DataBind(); } Above method will help you to add / edit items where object is saved in Session. DataTableCreateDataTableForIngredient { get { if (Session[ _IngredientDT ]== null ) { DataTabledt= new DataTable(); dt.Columns.Add( ingredientID  typeof ( int )); dt.Columns.Add( IngredientName  typeof ( string )); dt.Columns.Add( IngredientPrice  typeof ( float )); dt.Columns.Add( NewToUpdate  typeof ( int )); Session[ _IngredientDT ]=dt; } return (DataTable)Session[ _IngredientDT ]; } } Hope it helps Thanks. Cheers.

Manas Mohapatra · Answer

Session is server side state management technique which stores information user specific. However if you put more data in Session variable it may consume more memory so be careful on that. As you are going to use Session in Shopping cart application you can use Session to store user info. Let's say user logged in then store user id in session. Then user will slowly play in shopping cart and products to cart. At the time of adding items to cart store product id in session variable. In Checkout time you will fetch product info from Database based on product id present in Session. Hope this helps. If you have any doubt please comment here. http://www.codeproject.com/Articles/140787/Simple-Shopping-Cart

Midhun T P · Answer

Hi Sessions are used to save data unique to users. It will be expired after a period of time. If you are using an online shopping site you can use sessions to save the logged in user details and can be accessed on every page. In a shopping cart page you can check the session value and retrieve the data for particular user from your database. If the user is guest then also we can use this session concept.