title: DataGridView / DataTable | rowState doesn't change
body: <p>I'm having a problem with binding data to the DataGridView.</p>
  
  <p>I have a class MyDataGridView that inherit from DataGridView. My data grid view data source is a BindingSource object that holds a DataTable as the data source.</p>
  
  <p>Problem is, when I make changes via (my) DataGridView object - the rowState stays on 'unmodified' instead of modified; even though the values in the DataTable changed (that's what makes my update not work, since it consider the rowState as undefined). Notice that making changes directly to the DataTable works fine.</p>
  
  <p>Thank you (: </p>