title: What is exactly meaning of disconnected and connected approach in ADO.NET
body: <p>I am learning ADO.Net.
  I read this line:-</p>
  
  <blockquote>
    <p>DataReader is "connected" approach and dataset is "disconnected"
    approach</p>
  </blockquote>
  
  <p>From this sentence I have reached to this conclusion that in data reader we need to establish the connection to the database while in dataset we do not need to establish the connection to the data base.</p>
  
  <p>But how without establishing the connection one can access data.I know I am not getting the exact meaning.</p>
  
  <p>Please any one can tell me the exact meaning with example.</p>