C#影院售票系统毕业设计（3）

try {  //获取当前被点击座位标签的座位号(Text属性)  string seatNum = ((Label)sender).Text.ToString();  //赠送者名字  string customerName = this.txtGiver.Text.ToString();  //折扣  int discount = 0;  //票的类型  string type = "";  //如果学生票是选中的  if (this.rdoStuTicket.Checked)  {  type = "StudentTicket";  if (this.cboDiscount.Text == null)  {  MessageBox.Show("请输入折扣数！", "提示");  return;  }  else  {  discount = int.Parse(this.cboDiscount.Text);  }  }  //如果赠票是选中的  else if (this.rdoGiveTicket.Checked)  {  if (string.IsNullOrEmpty(this.txtGiver.Text))  {  MessageBox.Show("请输入赠票者姓名！", "提示");  return;  }  type = "FreeTicket";  }  //创建票 使用工具类的静态方法  Ticket newTicket = TicketUtil.CreateTicket(cinema.Schedule.Items[key], cinema.Seats[seatNum], discount, customerName, type);  //如果当前座位的颜色是黄色-待售出  if (cinema.Seats[seatNum].Color == Color.Yellow)  {  //询问  DialogResult result = MessageBox.Show("是否购买？", "提示", MessageBoxButtons.YesNo);  if (result == DialogResult.Yes)  {  //重新计算票价  newTicket.CalcPrice();  //将票加入到已经售出票的集合  cinema.SoldTickets.Add(newTicket);  //更新座位颜色状态  UpdateSeat();  lblPreferentialPrice.Text = newTicket.Price.ToString();  newTicket.Print();  //使座位集合的颜色状态改变  cinema.Seats[seatNum].Color = Color.Red;  }  }  //如果是已经售出的票  else  {  //显示当前售票信息  foreach (Ticket ticket0 in cinema.SoldTickets)  {  //已售出票集合的座位号等于当前点击座位号 并且 选中的时间等于售出票的场次的时间 并且 售出票的场次计划中电影名字等于TreeView选中时间的父节点也就是电影名称  if (ticket0.Seat.SeatNum == seatNum && ticket0.ScheduItem.Time == treeView1.SelectedNode.Text && ticket0.ScheduItem.Movie.MovieName == treeView1.SelectedNode.Parent.Text)  {  ticket0.Show();  }  }  }  } catch (Exception ex) {  MessageBox.Show("请先选择场次！" + ex.Message); }

 //重置labels集合label的颜色 foreach (string lkey in labels.Keys) {  labels[lkey].BackColor = Color.Yellow; } //重置座位集合颜色 foreach (string key in cinema.Seats.Keys) {  cinema.Seats[key].Color = Color.Yellow; } //遍历售出票集合 foreach (Ticket ticket in cinema.SoldTickets) {  //如果场次一致，并且电影名字一致  if (ticket.ScheduItem.Time == this.treeView1.SelectedNode.Text && ticket.ScheduItem.Movie.MovieName == this.lblName.Text)  {  //重新更改颜色  labels[ticket.Seat.SeatNum].BackColor = Color.Red;  cinema.Seats[ticket.Seat.SeatNum].Color = Color.Red;  } }