user.cs

小型的一个简单的系统开发的实现了简---添加--删除--修改---（vs2005和SQl2005）用到了一些JS脚本

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;

/// <summary>
/// user 的摘要说明
/// 管理员 用户
/// </summary>
public class user
{
   
    public user()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //

    }

    string user_id;
    string name;
    string password;
    string M_email;

    public string email
    {
        get
        {
            return M_email;
        }
        set
        {
            M_email=value;
        }
    }



    DataAccess.CDataAccess ExEUsers = new DataAccess.CDataAccess();
    public bool Add(string user_id, string xm, string pwd, string emaill)
    {
        string sqistr = "insert into Users (uses_id,name,password,email)values ('" + user_id + " ','" + xm + "','" + pwd + "','" + emaill + "')";
        DataAccess.CDataAccess DA = new DataAccess.CDataAccess();
        if (DA.ExecuteQuery(sqistr))
        {
            return true;
        }
        else
        {
            return false;
        }

    }

    public  DataTable showtab()
    {

        string sqlstr = "select* from Users ";

        return ExEUsers.GetDataTable(sqlstr);



   }

    public bool xiugai()
    {
        string sqistr = "update dbo.Users SET name='585',password='456789',email='kop'where cust_id='01'";
        if (ExEUsers.ExecuteQuery(sqistr))
        {
            return true;
        }
        else
        {
            return false;
        }
    }


    public Boolean delete(string cust_id)
    {
        string sqistr = "delete  [Users] where [uses_id]='" + cust_id + "'";

        if (ExEUsers.ExecuteQuery(sqistr))
        {
            return true;
        }
        else
        {
            return false;
        }

    }






    public bool Select(string xm, string pwd)
    {

        string srtSql = "select * from users where name='" + xm + "' and password='" + pwd + "'";

        if (ExEUsers.ExecuteQueryA(srtSql) != 0)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    /// <summary>
    ///  请告诉我 你 需要验证的 值
    /// 验证文本框里的值是否为空，为空就告诉前面(以 真假的 形式 )
    /// </summary>
    /// <param name="txt"></param>
    /// <returns></returns>
    public bool chenked(string txt)
    {
        if (txt.Length == 0)
        {
            return false;
        }
        else
        {
            return true;
        }
    }
    public DataTable SelectTable(string user_id)
    {
        string sqlstr = "select* from users where user_id='" + user_id + "'";


        return ExEUsers.GetDataTable(sqlstr);

    }

    

}