title: User settings are not saved (Settings.Default.Save();)
body: <p>In the properties of project I created a setting like this</p>
  
  <pre><code>NumberOfUsers int User 10
  </code></pre>
  
  <p>The columns are Name, Type, Scope and Value. </p>
  
  <p>Then there is a ComboBox where user can set a 'NumberOfUsers'. This combo has SelectedIndexChanged event where I save the changes whenever the user change the value of combo. Here's the code:</p>
  
  <pre><code>Settings.Default.NumberOfUsers = combo1.SelectedIndex;
  Settings.Default.Save();
  </code></pre>
  
  <p>The form with this combo is called from the parent as <code>frm.ShowDialog();</code> and in Constructor of the child form I try to set combo's selected index based on the Settings entry</p>
  
  <pre><code>combo1.SelectedIndex = Settings.Default.NumberOfUsers;
  </code></pre>
  
  <p>However, this DOES NOT work, that is the combo does not pull the value from setting, but it rather defaults to 0 as selected index.</p>
  
  <p>Anyone knows where I make mistake?</p>