How to add two values into one value

Question

0.00/5 (No votes)

See more:

Hello can any one help me with links or code for mycart.. My problem is that when i click a object in products page its going into my cart page.. but how many times im click add to cart button.. that many times its been submitting even thought its the same item. i want to change it into like.. when i click on add to cart button if that item is already exists in the mycart it has to get added to existing item(if both are same). if not then add to cart as 2nd item. please its an urgent assignment plz do help me....

Posted 3-Jun-13 0:53am

Vamna

Add a Solution

Comments

Vamna 4-Jun-13 0:55am

please do tell me wrt MVC 4.0.. not by asp.net

jeyamothi 5-Jun-13 8:29am

when u add the item to cart at that time u change the status from "Avail" to "Reserved". it avoids to add duplicates

2 solutions

Solution 3

Create a private method like this.

C#

private List<MYCart> sessionOfCarts
{
    get
    {
        if (Session["sessionOfCarts"] == null)
            this.sessionOfCarts = new List<MYCart>();
        return (List<MYCart>)Session["sessionOfCarts"];
    }
    set
    {
        Session["sessionOfCarts"] = value;
    }
}

//Main Method...

C#

public void AddMyCart(MYCart selectedItem)
 {
     if(sessionOfCarts.Any(p =>p.cartId == selectedItem.cartId))
     {
         var sample = sessionOfCarts.Select(p =>{
                  if (p.cartId == selectedItem.cartId)
                  { p.Quantity = p.Quantity + 1; }; return p; }).ToList();
     }
     else
     {
       sessionOfCarts.Add(selectedItem);
     }

 }

You can get the selected carts from sessionOfCarts..

Clear that Session once you complete this process..

Posted 3-Jun-13 2:30am

SPASWIN

Updated 3-Jun-13 2:32am

v3

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Prasad_Kulkarni · Accepted Answer · 2013-06-03T00:57:00

You can make it by something like this:

C#

public void AddItem(int productId) {
        // Create a new item to add to the cart
        CartItem newItem = new CartItem(productId);

        // If this item already exists in our list of items, increase the quantity
        // Otherwise, add the new item to the list
        if (Items.Contains(newItem)) {
            foreach (CartItem item in Items) {
                if (item.Equals(newItem)) {
                    item.Quantity++;
                    return;
                }
            }
        } else {
            newItem.Quantity = 1;
            Items.Add(newItem);
        }
    }

Refer article Build a Shopping Cart in ASP.NET[^]

Another way:
e.g:

C#

public void AddToCart(Album album)
        {
            // Get the matching cart and album instances
            var cartItem = storeDB.Carts.SingleOrDefault(
                c => c.CartId == ShoppingCartId
                && c.AlbumId == album.AlbumId);

            if (cartItem == null)
            {
                // Create a new cart item if no cart item exists
                cartItem = new Cart
                {
                    AlbumId = album.AlbumId,
                    CartId = ShoppingCartId,
                    Count = 1,
                    DateCreated = DateTime.Now
                };
                storeDB.Carts.Add(cartItem);
            }
            else
            {
                // If the item does exist in the cart,
                // then add one to the quantity
                cartItem.Count++;
            }
            // Save changes
            storeDB.SaveChanges();
        }

Found it: here[^]