private void btnEditar_Click(object sender, EventArgs e)
        {
            FormActualizarProducto frm = new FormActualizarProducto();

            if (dataGridView1.SelectedRows.Count > 0)
            {
                frm.textBox1.Text         = dataGridView1.CurrentRow.Cells[0].Value.ToString();
                frm.textBox2.Text         = dataGridView1.CurrentRow.Cells[1].Value.ToString();
                frm.textBox3.Text         = dataGridView1.CurrentRow.Cells[2].Value.ToString();
                frm.textBox4.Text         = dataGridView1.CurrentRow.Cells[3].Value.ToString();
                frm.textBox5.Text         = dataGridView1.CurrentRow.Cells[4].Value.ToString();
                frm.richTextBox1.Text     = dataGridView1.CurrentRow.Cells[5].Value.ToString();
                frm.dateTimePicker1.Value = Convert.ToDateTime(dataGridView1.CurrentRow.Cells[6].Value.ToString());
                frm.checkBox1.Checked     = Convert.ToBoolean(dataGridView1.CurrentRow.Cells[7].Value.ToString());
                frm.textBox6.Text         = dataGridView1.CurrentRow.Cells[8].Value.ToString();
                frm.label10.Text          = dataGridView1.CurrentRow.Cells[9].Value.ToString();

                frm.FormClosed += new FormClosedEventHandler(form2_FormClosed);
                frm.ShowDialog();
            }
            else
            {
                MessageBox.Show("Debe seleccionar una fila");
            }
        }
        private void button1_Click(object sender, EventArgs e)
        {
            if (validar == 1)
            {
                if (validar == 1)
                {
                    FormActualizarProducto frm = Owner as FormActualizarProducto;
                    if (dataGridView1.SelectedRows.Count > 0)
                    {
                        frm.label10.Text  = dataGridView1.CurrentRow.Cells[0].Value.ToString();
                        frm.textBox6.Text = dataGridView1.CurrentRow.Cells[1].Value.ToString();

                        this.Close();
                    }
                    else
                    {
                        MessageBox.Show("Debe seleccionar una fila");
                    }
                }
            }
        }