title: How to create a DataTable in C# and how to add rows?
body: <p>How do create a DataTable in C#?</p>
  
  <p>I did like this:</p>
  
  <pre><code> DataTable dt = new DataTable();
   dt.clear();
   dt.Columns.Add("Name");
   dt.Columns.Add("Marks");
  </code></pre>
  
  <p>How do I see the structure of DataTable?</p>
  
  <p>Now I want to add <em>ravi</em> for <code>Name</code> and <em>500</em> for <code>Marks</code>. How can I do this?</p>