CODEWITHSUNDEEP
c#
N.Cre
N.Cre

Reputation: 167

How to display the contents of a list of objects?

I'm new to this so the simpler, the better. I created a class that holds details of an item such as the item name, price and description. I created a constructor so that I could initialize the object upon creation.

class Item
{
    string itemName;
    double price;
    string description;

    public Item(string itemName, double price, string description)
    {
        this.itemName = itemName;
        this.price = price;
        this.description = description;
    }
}

In the main class, I created a List of objects and two objects of that class. Then I added both objects in the List. How can I display each object and it's values? I tried to use foreach but I can't figure out how.

static void Main(string[] args)
{
    Item item1 = new Item("Ball", 9.99, "This is a ball");
    Item item2 = new Item("Toy Car", 20.00, "This is a toy car");
    List<Item> items = new List<Item>();

    items.Add(item1);
    items.Add(item2);

    foreach (Item s in items)
    {
        Console.WriteLine(s);
    }
}

Upvotes: 0

Views: 2019

Answers (3)

Andrew
Andrew

Reputation: 261

Something like that for public fields: 

foreach (Item s in items)
{
  Console.WriteLine("{0} {1} {2}", s.itemName, s.price, s.description);
}

Or you can override ToString() method:

class Item 
{
  /// your code

  public override string ToString()
  {
    return string.Format("{0} {1} {2}", itemName, price, description);
    // or in C# 6 in Visual Studio 2015:
    // return $"{itemName} {price} {description}";
  }

Upvotes: 4

Salah Akbari
Salah Akbari

Reputation: 39976

You can override the ToString method for this purpose like this:

public override string ToString()
{
     return string.Format("itemName = {0} , price = {1} , description = {2}", itemName, price, description);
}

Or even better with string interpolation like this (c# 6):

public override string ToString()
{
     return $"itemName = {itemName} , price = {price} , description = {description}";
}

Upvotes: 1

Yosi Dahari
Yosi Dahari

Reputation: 7009

Just override ToString to get the string output you need.

public override string ToString()
{
    return string.Format("{0}{1}{2}", itemName, price, description);
}

Upvotes: 1

Related Questions