title: How to implement data container with instance["variable_name"] access?
body: <p>I am using <code>DataTable["content_name"]</code>, <code>DataReader["content_name"]</code>, but I do not know, how to create my own object using this way to access data.</p>
  
  <p>I want to create datareader result container (DataTable makes me some unwanted queries to db on firebird).</p>