title: How to insert & get images usin linq
body: <p>First       </p>
  
  <pre><code>id      (int)             
  name (varchar)          
  picture (image)  
  </code></pre>
  
  <p>Second     </p>
  
  <pre><code>id (int)      
  post (varchar)    
  age (int)
  </code></pre>
  
  <ol>
  <li>I want to add a record in first table.    </li>
  <li>Then I want to combine these two table using id.</li>
  <li>Then I want to fill a gridview where the post is "manager".</li>
  </ol>
  
  <p>(Especially I want to know how to insert image to database and how to display them using grid view.)</p>