my code

If DataGridView1.Rows.Count - 1 Then

                DataGridView1.Rows.Add()
                    DataGridView1.CurrentCell = DataGridView1.Rows(DataGridView1.Rows.Count - 1).Cells(1)
                    DataGridView1.BeginEdit(True)

            Else
                Exit Sub
                '    DataGridView1.Rows.Add()
            End If

i many code try

            If (DataGridView1.Rows.Count > 0) Then
                For i = 0 To DataGridView1.Rows.Count - 1
                    If DataGridView1.Rows(i).Cells("d1alisname").Value = "" Then

                        Exit Sub
                    Else
                        DataGridView1.Rows.Add()
                    End If
                Next
            End If

but add row