Listbox doesn't show data

[Niloo]

I should show this _customers to list box:

public Customer GetCustomer(int index)
        {
            return (Customer)_customers[index];
 
        }

so I used:

        private void UpdateCustomerList()
        {
            lstCustomer.Items.Clear();
            for (int index = 0; index <= (_customerMngr.count-1); index++)
                lstCustomer.Items.Add(_customerMngr.GetCustomer(index).ToString());
 
        }

but my list box doesnt show my data.
how can I convert _customer to string?

[adriancs]

Hi, I'm not fully understand what's your situation.

However, base on my understanding of your problem.
The situation that you want to solve might be this:

try this:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
 
namespace WindowsFormsApplication7
{
    public partial class Form2 : Form
    {
        List<Customer> lstCustomer;
        public Form2()
        {
            InitializeComponent();
            lstCustomer = new List<Customer>();
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            Customer a = new Customer();
            a.CustomerCode = "A001";
            a.CustomerId = 1;
            a.DateRegister = DateTime.Today;
            a.Name = "John Smift";
 
            Customer b = new Customer();
            b.CustomerCode = "A002";
            b.CustomerId = 2;
            b.DateRegister = DateTime.Today;
            b.Name = "Christina Jess";
 
            lstCustomer.Add(a);
            lstCustomer.Add(b);
        }
 
        private void button2_Click(object sender, EventArgs e)
        {
            if (lstCustomer == null || lstCustomer.Count == 0)
                return;
            listBox1.Items.Clear();
            for (int i = 0; i < lstCustomer.Count; i++)
            {
                string c = lstCustomer[i].CustomerId + " - ";
                c += "(" + lstCustomer[i].CustomerCode + ") ";
                c += lstCustomer[i].Name;
                listBox1.Items.Add(c);
            }
        }
    }
 
    public class Customer
    {
        public int CustomerId;
        public string CustomerCode;
        public string Name;
        public DateTime DateRegister;
    }
}
 

[foahchon]

If you want the ListBox to display a member in the Customer class (like the customer's name, for instance), you need to override the ToString() method in the Customer class:

public override string ToString()
{
    return String.Format("{0} {1}", this.FirstName, this.LastName);
}
 

...or something similar.

[adriancs]

to foahchon:
I think you have answered the question.
d^^b