title: Updating the value of a subItem in a ListViewItem inside a listview c# (Winforms)
body: <p>I would like to update the data contained in a ListviewItem contained itself in a ListView.
  The idea is when a row of the listview is selected, I click on a button and the data is updated .</p>
  
  <p>I have this code :</p>
  
  <pre><code>ListView listView1 = new System.Windows.Forms.ListView();   
  ListViewItem lv1 = new ListViewItem("me");    
  lv1.SubItems.Add("my brother");    
  listView1.Items.Add(lv1);
  
  Button myB = new System.Windows.Forms.Button();
  
  private void myB_Click(object sender, EventArgs e)
  {
      listView1.SelectedItems[0]  ....... ;
  }
  </code></pre>
  
  <p>I know how to go any further to acces to modify the value of "my brother" to "my sister".</p>
  
  <p>Thanks in advance.</p>