CODEWITHSUNDEEP
c#listbox
user1
user1

Reputation: 13

How to pass listbox items as arguments to a method in c#?

For example i have these values stored in the listbox.

int pid = (int)reader["pid"];
string FirstName = (string)reader["Fname"];
string LastName = (string)reader["Lname"];
string gender = (string)reader["gender"];
string address = (string)reader["address"];
string email = (string)reader["email"];
string item = string.Format("{0} - {1} - {2} -{3} - {4} - {5}" pid,FirstName, LastName,gender,address,email);
this.listBox1.Items.Add(item);

How do i pass these items to another class method ? Thanks

Upvotes: 1

Views: 3743

Answers (1)

goodday21
goodday21

Reputation: 53

You can pass it like that:

public void YourMethod(ListBox.ObjectCollection items)

using:

YourMethod(listBox1.Items);

UPD: I created a windows form with empty listbox and 1 button. Clicking on button fills the listbox. Form1 class:

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();            
        }

        private void button1_Click(object sender, System.EventArgs e)
        {
            var itemGenerator = new ItemGenerator();
            itemGenerator.AddItems(listBox1);
        }
    }

ItemGenerator class:

public class ItemGenerator
    {
        private readonly string[] items = {"item1", "item2", "item3"};

        public void AddItems(ListBox listBox)
        {
            foreach (var item in items)
            {
                listBox.Items.Add(item);
            }
        }
    }

ItemGenerator has method AddItems which has ListBox in parameter. This method is called in Form1 class, so you can directly give a ListBox to processing.

Upvotes: 1

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