private void Button1_Click(object sender, EventArgs e)//CanelTicket()
{
DialogResult result = MessageBox.Show("确定取消本订单？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
if (result == DialogResult.Yes)
{
for (int i = listView1.SelectedItems.Count - 1; i >= 0; i--)
{
ListViewItem item = listView1.SelectedItems[i];
using (busContext context = new busContext())
{
Ticket ticket = context.Ticket.FirstOrDefault(x => x.Tid == item.Text);
Bookinfo bookinfo = context.Bookinfo.FirstOrDefault(x => x.Bid == ticket.Bid);
DateTime dt;
DateTimeFormatInfo dtFormat = new DateTimeFormatInfo();
dtFormat.ShortDatePattern = "yyyy/MM/dd hh:mm";
dt = Convert.ToDateTime(ticket.StartTime, dtFormat);
var now = DateTime.Now;
if (DateTime.Compare(dt, now) > 0)
{
bookinfo.Surplus++;
context.Remove(ticket);
context.SaveChanges();
MessageBox.Show("取消订单成功 ！", "提示");
listView1.Items.Remove(item);
}
else
{
MessageBox.Show("订单已经过期，无法取消 ！", "提示");
}
}
}
}
}
public void DeleteLine(Line temp)
{
using (busContext context = new busContext())
{
Bookinfo bookinfo = context.Bookinfo.FirstOrDefault(x => x.Lid == temp.Lid);
if (bookinfo == null)
{
context.Remove(temp);
context.SaveChanges();
MessageBox.Show("删除成功！", "提示");
}
else
{
context.Remove(temp);
context.Remove(bookinfo);
context.SaveChanges();
MessageBox.Show("删除成功，使用本线路的车次也被删除！", "提示");
}
}
}