How do I...populate added programmatically row in datagridview with database ?

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C#

database

DataGridView

i want to populate a row that added programmatically in datagridview with data (sql) or (access database) ..
the code used to add a row programmatically is :

        DataGridViewColumn d1 = new DataGridViewComboBoxColumn();
            DataGridViewColumn d2 = new DataGridViewComboBoxColumn();
            DataGridViewColumn d3 = new DataGridViewTextBoxColumn();
            DataGridViewColumn d4 = new DataGridViewTextBoxColumn();
            DataGridViewColumn d5 = new DataGridViewTextBoxColumn();
            DataGridViewColumn d6 = new DataGridViewTextBoxColumn();
            DataGridViewColumn d7 = new DataGridViewTextBoxColumn();

            d1.HeaderText = "barcode";
            d2.HeaderText = "product name";
            d3.HeaderText = "product type";
            d4.HeaderText = "product price";
            d5.HeaderText = "product amount";
            d6.HeaderText = "product balance";
            d7.HeaderText = "note";

            if (this.dataGridView1.Columns.Count == 0)
            {

                dataGridView1.Columns.AddRange(d1, d2, d3, d4, d5, d6, d7);
            }

            dataGridView1.Rows.Add(1);

}