title: List View Selected Index Changed in a multi-selectable list view
body: <p>I have a windows form with a listview control. I set the MultiSelect property to true and I added a selected_index changed event.</p>
  
  <p>I get the event fired when I click the same index as the current selected index.
  My expectation is that I will not get the event fired. The strange thing is that the event fired 1 second after I click the index.</p>
  
  <p>I appreciate for any reply to explain why this is happening.</p>
  
  <p>Edited:</p>
  
  <p>Sample Code:</p>
  
  <pre><code>private void Form1_Load(object sender, EventArgs e)
  {
      listView1.View = View.Details;
      listView1.MultiSelect = true;
      listView1.FullRowSelect = true;
  
      listView1.Columns.Add("Number");
      listView1.Items.Add("1");
      listView1.Items.Add("2");
      listView1.Items.Add("3");
      listView1.Items.Add("4");
  }
  private void listView1_SelectedIndexChanged(object sender, EventArgs e)
  {
      if (listView1.SelectedItems.Count &gt; 0)
      {
          MessageBox.Show("Selected Index Changed event fired: ");
      }
  }
  </code></pre>
  
  <p>Follow these steps to see the problem:</p>
  
  <ol>
  <li><p>Try to select one item, for instance: select number 3</p>
  
  <p>expected result: listview1_SelectedIndexChanged is fired</p>
  
  <p>Result: It is fired.</p></li>
  <li><p>Try to click the number 3 again.</p>
  
  <p>expected result: listview1_SelectedIndexChanged is NOT fired</p>
  
  <p>Result: It is fired with one second delay.</p></li>
  </ol>