queryflight.aspx.cs

来自「此项目是用asp.net开发的航班查询系统」· CS 代码 · 共 144 行

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using 业务逻辑;
using 数据访问.实体类;

namespace AirOfWlb
{
	/// <summary>
	/// QueryFlight 的摘要说明。
	/// </summary>
	public class QueryFlight : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.CompareValidator CompareValidator1;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.RegularExpressionValidator egularExpressionValidator2;
		protected System.Web.UI.WebControls.DropDownList ddlDepartureCity;
		protected System.Web.UI.WebControls.DropDownList ddlArrivalCity;
		protected System.Web.UI.WebControls.TextBox txtMinDate;
		protected System.Web.UI.WebControls.TextBox txtMaxDate;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.DataGrid dgFlight;
		protected System.Web.UI.WebControls.Button btnSearch;
		protected System.Web.UI.HtmlControls.HtmlGenericControl FONT1;
		protected System.Web.UI.HtmlControls.HtmlTableCell TD1;
	    
		//声明业务逻辑变量
		AirBusiness bus=null;
		private void Page_Load(object sender, System.EventArgs e)
		{
			bus=new AirBusiness();
			if(!this.IsPostBack)
			{
				this.Bind("");
			}
		}
		private void Bind(string str)
		{
			AirBusiness bus=new AirBusiness();
			if(str.Equals(""))
			{
				//获取所有城市信息
				CityCollection city=bus.GetCity(-1,"");
            
				//将城市集绑定到起飞列表
				this.ddlDepartureCity.DataSource=city;
				this.ddlDepartureCity.DataTextField="CityName";
				this.ddlDepartureCity.DataValueField="CityId";
				this.ddlDepartureCity.DataBind();
            
				//将城市集绑定到到达列表
				this.ddlArrivalCity.DataSource=city;
				this.ddlArrivalCity.DataTextField="CityName";
				this.ddlArrivalCity.DataValueField="CityId";
				this.ddlArrivalCity.DataBind();
			}
			//获取所有航班信息
			FlilghtCollection flights=null;
			if(this.ddlDepartureCity.SelectedIndex==this.ddlArrivalCity.SelectedIndex)
			{
				flights=bus.GetFlight(-1,-1,DateTime.Parse("2004-9-12"),DateTime.Parse("2007-9-12"));
				
			
			}
			else
			{
				DateTime minDate=DateTime.Parse("2004-9-12");
				DateTime maxDate=DateTime.Parse("2007-9-19");
				if(!this.txtMinDate.Text.Equals(""))
				{
				  minDate= DateTime.Parse(this.txtMinDate.Text);
				}

				if(!this.txtMaxDate.Text.Equals(""))
				{
					maxDate= DateTime.Parse(this.txtMaxDate.Text);
				}
				
				
			 flights=bus.GetFlight(int.Parse(this.ddlDepartureCity.SelectedValue),int.Parse(this.ddlArrivalCity.SelectedValue),minDate,maxDate);
			}
			//将航班信息绑定到dgFlight
			this.dgFlight.DataSource=flights;
			this.dgFlight.DataBind();
			
				
		
             
			for(int i=0;i<flights.Count;i++)
			{   
				//获取每一个航班对应的舱位的DataGrid
				DataGrid dgCabin=(DataGrid)this.dgFlight.Items[i].FindControl("dgCabin");
				//获取每一个航班对应的舱位信息
				CabinCollection cabin=flights[i].Cabin;
				//将舱位信息绑定到dgCabin
				dgCabin.DataSource=cabin;
				dgCabin.DataBind();

			}


															 
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.btnSearch.Click += new System.EventHandler(this.btnSearch_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void btnSearch_Click(object sender, System.EventArgs e)
		{   
			this.Bind("bind");
		}
	}
}