title: Error in ListView: InvalidArgument = Value of '0' is not valid for 'index'
body: <p>This error appears when I select some item in ListView for the second time. I tried to debug it, and when I select some item for the second time, the <code>list_answers.SelectedItems.Count</code> is 0. Why?
  Here is my code:</p>
  
  <pre><code>private void list_answers_SelectedIndexChanged(object sender, EventArgs e)
          {
              ListViewItem t = list_answers.SelectedItems[0];
              for (int i = 0; i &lt; tasks.Count; i++)
              {
                  if (t.Text == "Question №" + (i + 1))
                  {
                      this.ShowOnePanel(i);
                      iter = i;
                      break;
                  }
              }
          }
  </code></pre>