title: Modifying App.Config file at the time of installation using c#
body: <pre><code>&lt;configuration&gt;
    &lt;configSections&gt;
      &lt;section name="ADMIN" type="System.Configuration.DictionarySectionHandler"/&gt;
    &lt;/configSections&gt;
    &lt;User&gt;    
      &lt;add key="ExtendTime" value="20"/&gt;
      &lt;add key="Name" value="sss"/&gt;
    &lt;/User&gt;
  &lt;configuration&gt;
  </code></pre>
  
  <p>i have to remove first child element in user config section i.e . Reply me if you have any idea for this.</p>
  
  <p>i am using </p>
  
  <pre><code>Configuration config = ConfigurationManager.OpenExeConfiguration(Context.Parameters["assemblypath"]);
  ConfigurationSection section = config.GetSection("USER");
  </code></pre>