title: Acess to a DataGrid through C# code and manipulate data inside the DataGrid
body: <p><a href="http://pastebin.com/GevKmNfX" rel="nofollow">My DataGrid XAML code</a></p>
  
  <p><strong>1-</strong> I want to be able to add new rows and acess to data of one column of the DataGrid, i've tried using the Name prop but it doesn't work...</p>
  
  <p><strong>2-</strong> After that, to add a new row i just have to call the Add method of dataGrid.Items ? What do i feed that method with? Create a class with proprieties representing the columns like answered <a href="http://social.msdn.microsoft.com/Forums/en/wpf/thread/1b694f75-7621-4c88-8055-6c31c601c87f" rel="nofollow">here</a> ?</p>
  
  <p><strong>3-</strong> I have a column named "Nota", how do i acess to the data of that column in every row?</p>
  
  <p>Thanks in advance,</p>
  
  <p><strong>-A</strong></p>