title: Issue related to Multiline Textbox in ASPxGridView
body: <p>I am new to DevExpress Controls.</p>
  
  <p>I was studing the ASPxGridView demonstration <a href="http://demos.devexpress.com/ASPxGridViewDemos/GridEditing/EditForm.aspx" rel="nofollow">here</a>. The notes field is a multiline TextBox. I have tried the same code and design as given in the demonstration, but I did not get a multiline TextBox for the notes field.</p>
  
  <p>How can I get a multiline TextBox in as in the demonstration?</p>