DataGridViewComboBoxColumn cbcm1 = new DataGridViewComboBoxColumn();
            cbcm1.HeaderText = "测试";
            cbcm1.Items.Clear();            
            string[] array = new string[ds.Tables[0].Rows.Count];
            for (int i = 0; i < array.Length; i++)
            {
                array[i] = ds.Tables[0].Rows[i]["name"].ToString();
            }
            cbcm1.Items.AddRange(array);
            cbcm1.DataPropertyName = "数据库语句字段名";
            //美化
            cbcm1.DisplayStyle = DataGridViewComboBoxDisplayStyle.ComboBox;
            cbcm1.DisplayStyleForCurrentCellOnly = true;
            gridProject.Columns.Insert(5, cbcm1);