Cannot insert Item to listview
<p><a href="http://imageshack.us/f/641/shit2.png/" rel="nofollow">Here are all my classes.</a></p>

<p>MainForm = listview, </p>

<p>CustomerFrame = textboxes</p>

<p>When I compile my program, my <code>MainForm</code> appears with an empty listview, and when I press on the add button to insert an item, my <code>CustomerFrame</code> class appears. When writing in the textboxes and clicking ok, no item inserted in my listview (<code>MainForm</code>). Why?</p>

<p>Some code:</p>

<p><em>MainForm</em></p>

<pre><code>using(var customerframe = new CustomerFrame())
{   
    if (customerframe.DialogResult == DialogResult.OK) 
    {
        CustomerFiles.Contact contact = customerframe.GetContact();
        CustomerFiles.Address address = customerframe.GetAddress();
        CustomerFiles.Phone phone = customerframe.GetPhone();
        CustomerFiles.Email email = customerframe.GetEmail();

        //Items in my listview
        listviewitem = new ListViewItem();
        listviewitem.SubItems.Add(contact.FirstName);
        listviewitem.SubItems.Add(contact.LastName);
        listviewitem.SubItems.Add(phone.Home);
        listviewitem.SubItems.Add(phone.Mobile);
        listviewitem.SubItems.Add(address.Country);
        listviewitem.SubItems.Add(address.ZipCode);
        listviewitem.SubItems.Add(address.City);
        listviewitem.SubItems.Add(address.Street);
        listviewitem.SubItems.Add(email.Personal);

        this.listView1.Items.Add(listviewitem);

    }
}
</code></pre>

<p><em>MainForm</em></p>

<pre><code>private void addToolStripMenuItem_Click_1(object sender, EventArgs e)
{
    customerframe.Show();
    CustomerManager cm = new CustomerManager();
}
</code></pre>

<p><em>CustomerFrame</em></p>

<pre><code>private void btnOk_Click(object sender, EventArgs e)
{
    MainForm main = new MainForm();
    DialogResult = DialogResult.OK;        
}
</code></pre>

<p>By the way, when I use </p>

<pre><code> if (customerframe.ShowDialog() == DialogResult.OK)
</code></pre>

<p>this will make the <code>CustomerFrame</code> form appear before the <code>MainForm</code> (which I don't want) and it will insert item, but only once.</p>
