影院售票系统（3）

昨天写到加载电影信息，今天讲下如何生成电影座位，就是这个

当我们点击购票成功之后，座位会变红
在主窗体里建Dictionary<string, Label> labels = new Dictionary<string, Label>(); label的集合

 //显示座位的方法
        public void Seat()
        {
            int seatRow = 5;   //行
            int seatLine = 7;  //列
            for (int i = 0; i < seatRow; i++)
            {
                for (int j = 0; j < seatLine; j++)
                {
                    Label label = new Label();
                    //设置背景色
                    label.BackColor = Color.Yellow;
                    //设置字体
                    //  label.Font = new System.Drawing.Font("宋体"，14.25F,System.Drawing.FontStyle.Regular,System.Drawing.GraphicsUnit.Point,((byte)(134)));
                    //设置尺寸
                    label.AutoSize = false;
                    label.Size = new System.Drawing.Size(50, 25);
                    //设置座位号
                    label.Text = (j + 1).ToString() + "-" + (i + 1).ToString();
                    label.TextAlign = ContentAlignment.MiddleCenter;
                    //设置位置
                    label.Location = new Point(60 + (i * 90), 60 + (j * 60));
                    //所有标签绑定到同一事件
                    label.Click += new System.EventHandler(labelSeat_Click);    //labelSeat_Click是我们自己写的事件
                    this.tabPage2.Controls.Add(label);
             //这里添加回我们刚刚建的集合里去
                    labels.Add(label.Text, label);
                    //新建座位类对象，并添加到座位集合里去
                     seat = new Seat((j + 1).ToString() + "-" + (i + 1).ToString(), Color.Yellow);
                     c.Seats.Add(seat.SeatNum, seat);
                }
            }
        }

labelSeat_click里面是这样写的

private void labelSeat_Click(object sender, EventArgs e)
        {
            if (label8.Text == "")
            {
                MessageBox.Show("您还没选择电影!", "提示");
                return;
            }
            tickets++;
            try
            {
                string seatNum = ((Label)sender).Text.ToString();
                string customerName = this.textBox1.Text.ToString();
                int discount = 0;//折扣
                string type = "";//类型
                if (this.radioButton3.Checked)
                {
                    type = "student";
                    if (this.comboBox1.Text == "")
                    {
                        MessageBox.Show("请输入折扣数!", "提示");
                        return;
                    }
                    else
                    {
                        discount = Convert.ToInt32(this.comboBox1.Text);
                    }
                }
                else if (this.radioButton2.Checked)
                {
                    if (this.textBox1.Text == "")
                    {
                        MessageBox.Show("请输入赠票者姓名!", "提示");
                        return;
                    }
                    else
                    {
                        type = "free";
                    }
                }
                else if (this.radioButton1.Checked)
                {
                    type = "putong";
                }
                //调用工具类创建票
                Ticket Ticket = TicketUtil.CreateTicket(c.Schedule.Items[key], c.Seats[seatNum], discount, customerName, type);
                if (c.Seats[seatNum].Color == Color.Yellow)
                {
                    //打印

                    DialogResult result = MessageBox.Show("是否购买?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
                    if (result == DialogResult.Yes)
                    {
                        c.Seats[seatNum].Color = Color.Red;
                            UpdateSeat();
                        Ticket.CalcPrice();
                        c.SoldTickets.Add(Ticket);
                        label6.Text = Ticket.Price.ToString();
                        Ticket.Print();
                    }
                    else if (result == DialogResult.No)
                    {
                        return;
                    }
                }
                else
                {
                    //显示当前售出票的信息
                    foreach (Ticket item in c.SoldTickets)
                    {
                        //判断是否为同场次、同电影、同座位号
                        if (item.Seat.SeatNum == seatNum && item.ScheduleItem.Time == this.treeView1.SelectedNode.Text && item.ScheduleItem.Movie.MovieName == this.treeView1.SelectedNode.Parent.Text)
                        {
                            item.Show();
                        }
                    }
                }
            }catch(Exception ex){}
        }

ClearSeat()用于把红色的座位变成黄色，UpdateSeat()调用集合里不同电影的座位信息

   private void ClearSeat()
        {
            foreach (Seat seat in c.Seats.Values)
            {
                seat.Color = Color.Yellow;
            }
        }

        /// <summary>
        /// 更新座位状态 
        /// </summary>
        private void UpdateSeat()
        {
            //根据影院类里面的座位来更新座位的颜色
            foreach (string key in c.Seats.Keys)
            {
                labels[key].BackColor = c.Seats[key].Color;
            }
        }
    }