operate.cs.exclude

用vs2005和sql2000实现的小型超市管理系统

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.Data.SqlClient;
/// <summary>
/// operate 的摘要说明
/// </summary>
public class operate
{
	public operate()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}
    //public class login
    //{
    //    public string 用户名;
    //    public string 用户密码;
    //    public string 用户类型编号;
    //}
    public class client
    {
        public string clientid;
        public string 客户名称;
        public string 联系人;
        public string 联系电话;
        public string 联系地址;
    }
        
    //}
    //public class sellsp
    //{
    //    public string 商品编号;
    
    //}

    public static bool findclient(string 客户编号)
    {
        SqlConnection con = DB.createConnection();
        con.Open();
        SqlCommand cmd = new SqlCommand("select count(*) from client where 客户编号='" + 客户编号 + "'",con);
        int count = Convert.ToInt32(cmd.ExecuteScalar());
        if (count > 0)
        {
            return true;
        }
        else
        {
            return false;
        }
    }

    //绑定客户
    public static DataTable selectclient()
    {
        SqlConnection con = DB.createConnection();
        SqlDataAdapter sda = new SqlDataAdapter();
        sda.SelectCommand = new SqlCommand("select * from client", con);
        DataSet ds = new DataSet();
        sda.Fill(ds, "client");
        return ds.Tables["client"];

    }

}