giohang.cs

shop sales computer, write asp.net code c#

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Collections;

/// <summary>
/// Summary description for GioHang
/// </summary>
public class GioHang
{
    //ArrayList cart = new ArrayList(LapTop a[]);
    System.Collections.Generic.List<LapTop> cart = new System.Collections.Generic.List<LapTop>();
    LapTop lap = new LapTop();
    public System.Collections.Generic.List<LapTop> Cart
    {
        get { return cart; }
    }
	public GioHang()
	{
       
	}
    public void AddLapTop(LapTop a)
    {
        this.cart.Add(a);
    }
    public int Count()
    {
        return this.cart.Count;
    }
    public DataTable ToDatatable()
    { 
        DataTable dt=new DataTable();
        DataRow row;      
        dt.Columns.Add(new DataColumn("id_sp"));
        dt.Columns.Add(new DataColumn("ten_sp"));
        dt.Columns.Add(new DataColumn("gia"));
        dt.Columns.Add(new DataColumn("sl"));   
        for (int i = 0; i < cart.Count; i++)
        {
            row = dt.NewRow();
            row[0] = cart[i].ID_SP;
            row[1]= cart[i].TEN_SP;
            row[2]= cart[i].GIA;
            row[3] = cart[i].SL;
            dt.Rows.Add(row);
        }      
        return dt;
            
    }
    public void RemoveLap(LapTop lap)
    {

        this.cart.Remove(lap);
    }
     public void ChangeQuality(string id, int sl)
    {
        foreach (LapTop lap in cart)
        {
            if (lap.ID_SP == id)
            {
                lap.SL = sl;
            }
        }
    }
    public LapTop GetLaptop(string id)
    {
        foreach (LapTop lap in cart)
        {
            if (lap.ID_SP == id)
            {
                return lap;
            }
        }
        return null;
    }

}
public class LapTop
{ 
    string id_sp;
    string ten_sp;
    string gia;
    int sl=1;
    public string ID_SP
    {
        get { return id_sp; }
        set { id_sp = value; } 
    }
    public int SL
    {
        get { return sl; }
        set { sl = value; }
    }
    public string TEN_SP
    {
        get { return ten_sp; }
        set { ten_sp = value; }
    }
    
    public string GIA
    {
        get { return gia; }
        set { gia = value; }
    }
    public LapTop()
    {
        this.ID_SP = id_sp;
        this.TEN_SP = id_sp;  
        this.GIA = gia;
        this.SL = sl;
    }
   
    
}