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开发

需求分析

          用户故事：作为一个观众，我希望了解某一场比赛的比分，以便了解赛况。（满意条件：精确到每一局的结果比分）。

       代码规范：使用Vs2010和帕斯卡命名法和骆驼命名法 。

具体代码

查询及调用方法代码：

private void cmbLoad()
        {
            cmbName.Items.Clear();

            string sql = "select game from paiqiu";
            SqlDataReader reader = SqlHelper.ExecuteReader(sql);
            if (reader.HasRows)
            {
                while (reader.Read())
                {
                    cmbName.Items.Add(reader[0]);
                }
            }
            reader.Close();
        }
        private void dgvLoad()
        {
            string sql = "select * from paiqiu";
            dgvGame.DataSource = SqlHelper.ExecuteDataTable(sql);
        }
        private void Form2_Load(object sender, EventArgs e)
        {
            cmbLoad();
            dgvLoad();
           
        }

        private void select_Click(object sender, EventArgs e)//单个查询
        {
            StringBuilder sql = new StringBuilder("select * from paiqiu where 1=1");
            if (!string.IsNullOrEmpty(cmbName.Text))
            {
                sql.Append(" and game like ‘%" + cmbName.Text + "%‘");
            }
            SqlDataReader reader= SqlHelper.ExecuteReader(sql.ToString());
            if (reader.HasRows)
            {
                dgvGame.DataSource = SqlHelper.ExecuteDataTable(sql.ToString());
            }
            else
            {
                MessageBox.Show("没有查询到比赛记录！");
            }
        }

        private void lblWrite_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)//跳转计分页面
        {
            this.Close();
            writeHistory0 a = new writeHistory0();
            a.Show();
        }

        private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
             Application.Exit();
        }

        private void dgvGame_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            int x = e.ColumnIndex;
            int y = e.RowIndex;
            if(x==0&&y!=-1)
            {
                child ch = new child();
                ch.xq(dgvGame.CurrentRow.Cells[11].Value.ToString());
                ch.Show();
            }
          

        }连接数据库代码：

 private static readonly string strConn = ConfigurationManager.ConnectionStrings["paiqiulianjie"].ConnectionString;
        public static DataTable ExecuteDataTable(string sql, params SqlParameter[] pms)
        {
            DataTable dt = new DataTable();
            using (SqlDataAdapter adapter = new SqlDataAdapter(sql, strConn))
            {
                if (pms != null)
                {
                    adapter.SelectCommand.Parameters.AddRange(pms);
                }
                adapter.Fill(dt);
            }
            return dt;
        }
        public static SqlDataReader ExecuteReader(string sql, params SqlParameter[] pms)
        {
            SqlConnection con = new SqlConnection(strConn);
            using (SqlCommand cmd = new SqlCommand(sql, con))
            {
                if (pms != null)
                {
                    cmd.Parameters.AddRange(pms);
                }
                try
                {
                    con.Open();
                    return cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection);
                }
                catch (Exception)
                {
                    con.Close();
                    con.Dispose();
                    throw;
                }

            }
        }
        public static int ExecuteNonQuery(string sql, params SqlParameter[] pms)
        {
            using (SqlConnection con = new SqlConnection(strConn))
            {
                using (SqlCommand cmd = new SqlCommand(sql, con))
                {
                    if (pms != null)
                    {
                        cmd.Parameters.AddRange(pms);
                    }
                    con.Open();
                    return cmd.ExecuteNonQuery();
                }
            }
        }

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