windows form listbox.selectedvale

[hhenryyho]

hi ,

The below is my code. One the first form i would like to get the selected value the user chose, and pass this info to the second form for editing of thru the primary key ID.

But i can't seem to pass the selectedvale over. anybody can help see what's wrong?

 public void viewAllLocation_Load(object sender, EventArgs e)
        {
  listBox2.DataSource = type.getLocation();
            listBox2.DisplayMember = "LocationName";
            listBox2.ValueMember = "LocationID";
 }

 public void button3_Click(object sender, EventArgs e)
        {

updateLocation frm = new updateLocation(listBox2.SelectedItem.ToString());
            frm.Show();
}

using System;
using System.Windows.Forms;

namespace ListBoxMenuSample
{
    public partial class updateLocation : Form
    {
        
        public updateLocation()
        {
            InitializeComponent();
        }

   

        public string _textBox
        {
            set { textBox1.Text = value; }
        }

        public updateLocation(string strTextBox)
{
  InitializeComponent();
  textBox1.Text = strTextBox;
}

 
    }
}