DataGrid with DataSet Closing Form Validation

[Michael Dimento]

I'm trying to detect if there are any unsaved changes in a
dataset when a user hits close form button (top right hand
corner).

My problem is that HasChanges does not detect a row that
has been modified if the cursor has not "left" that row
after modification. So if I edit a cell in a row of the
datagrid and then immediately click on close form, the
dataset has no changes, yet it really should.

i have tried setting focus to another control before
checking the haschanges, but still get the same result. i
have also tried setting the current row index of the
datagrid away from the row to try and "trick" it or
emulate me moving out of that row, but it still does not
work.

Has anyone had to deal with a similar problem ??
Sample code below:

private void UnsoladViewer_Closing(object sender,
System.ComponentModel.CancelEventArgs e)

{

DialogResult dr = DialogResult.None;

if (dsUnsolad.HasChanges())
{
dr = MessageBox.Show ("There are outstanding
changes. " + "Click YES to save changes." , "Unsolad
Modified", MessageBoxButtons.YesNoCancel);

switch (dr)
{
case DialogResult.Yes:
SaveData();
e.Cancel = false;
break;
case DialogResult.No:
e.Cancel = false;
break;
default:
e.Cancel = true;
break;
}
}
}