Question

c#在datagridview中删除指定行并更新到数据库

Answer 1

下面是删除指定的行并更新到库（实际上原理很简单，就是从数据库中删除选定的行，然后清除dataGridView中的所有数据再执行一次查询就行了）：

     private void 删除ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            try 
            {
                string temp = "delete from qty where PartNum='" + dataGridView1["PartNum",indexrow].Value.ToString() + "'";
                if (MSSQL.ExecuteQuery(temp))
                {
                    AddControls a = new AddControls();
                    a.DeleteDataGridView(dataGridView1);
                    a.SetDataGridViewData(dataGridView1, str, sqldrr, ddrr);
                }                
            }
            catch { }
        }

里面MSSQL.ExecuteQuery是这样定义的：

/// <summary>
        /// 执行sql语句
        /// </summary>
        /// <param name="cmdString">查询，更新，删除语句</param>
        /// <returns>成功返回true,失败返回false</returns>
        public static bool ExecuteQuery(string cmdString)
        {
            MsSql();
            SqlConnection conn = new SqlConnection(connectString);
            SqlCommand cmd = new SqlCommand(cmdString, conn);
            cmd.CommandText = cmdString;
            try
            {
                conn.Open();
                if (cmd.ExecuteNonQuery() > 0)
                {
                    conn.Close();
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch (SqlException Sqlex)
            {
                Console.WriteLine(Sqlex.Message);
                return false;
            }
        }

Answer 2

SqlCommand的用法啊。