Treating Enter key on DataGridView

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Hi all!

I have a special treatment to Enter key in a datagridview . When Enter key
is pressed I move to the next column on the row. Here is the code:

private void dgv_EditingControlShowing(object sender,
DataGridViewEditingControlShowingEventArgs e)
{
e.Control.KeyPress -= new
System.Windows.Forms.KeyPressEventHandler(this.Tex tbox_KeyPress);
e.Control.KeyPress += new
System.Windows.Forms.KeyPressEventHandler(this.Tex tbox_KeyPress);
}

private void Textbox_KeyPress(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
if ( dgv.ColumnIndex + 1 < dgv.Columns.Count )
{
== dgv.CurrentCell =
dgv.Rows[dgv.CurrentCell.RowIndex].Cells[dgv.CurrentCell.ColumnIndex + 1];
e.Handled = true;
}
}
}

When the line marked with "==>" is executed, the dgv_CellValidating() event
is called and if I set "e.Cancel = true;" gives me the following error:

"Operation did not succeed because the program cannot commit or quit a cell
value change".
So, how can I call dgv_CellValidating() before moving to the next cell?

Thank you!
Vanessa