C#实现餐饮管理系统完整版

using System;using System.Data;using System.Configuration;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;using System.Data.SqlClient;/// <summary>///Dataoperator 的摘要说明/// </summary>public class Dataoperator{ public Dataoperator() { // //TODO: 在此处添加构造函数逻辑 // }  public static SqlConnection creatcon()  {    string strcon = ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;    SqlConnection con = new SqlConnection(strcon);    return con;  }/// 查询的数据是否已经存在  /// </summary>  /// <param name="sql">需要执行的SQL语句</param>  /// <returns>返回布尔值，true表示已经存在，false表示不存在</returns>  public static bool isData(string sql)  {    //创建数据库连接    SqlConnection con = creatcon();    //打开数据库连接    con.Open();    //创建Command对象    SqlCommand com = new SqlCommand(sql, con);    //获取ExecuteScalar方法所返回的值    int ex = Convert.ToInt32(com.ExecuteScalar());    //关闭数据库连接    con.Close();    //判断整型变量并返回相应的布尔值    if (ex > 0)    {      return true;    }    else    {      return false;    }  }  /// 执行数据库中的更新、插入、删除操作  /// </summary>  /// <param name="sql">需要执行的SQL语句</param>  /// <returns>返回布尔值，true表示已存在，false表示不存在</returns>  public static bool exSql(string sql)  {    SqlConnection con = creatcon();    con.Open();    SqlCommand com = new SqlCommand(sql, con);    int rows = Convert.ToInt32(com.ExecuteNonQuery());    if (rows > 0)      return true;    else      return false;  }  public static string getTier(string sql) //返回指定列的值  {    //SqlConnection con = creatcon()    //con.Open();    //SqlCommand cmd = new SqlCommand(sql, con);    ////获得记录行    //SqlDataReader sdr = cmd.ExecuteReader();    //sdr.Read();    //string str = sdr[0].ToString();    //con.Close();    //return str;    SqlConnection con = creatcon();    SqlDataAdapter sda = new SqlDataAdapter(sql, con);    DataSet ds = new DataSet();    sda.Fill(ds);    string str = ds.Tables[0].Rows[0][0].ToString();    return str;  }  public static DataSet getRows(string sql)  //返回所查询表中所有数据  {    //创建数据库连接    SqlConnection con = creatcon();    //打开数据连接    //创建DataAdapter对象    SqlDataAdapter sda = new SqlDataAdapter(sql, con);    //创建DataSet对象    DataSet ds = new DataSet();    //通过Fill方法    sda.Fill(ds);    //关闭数据库连接    //返回DataSet对象    return ds;  }   }

using System;using System.Data;using System.Configuration;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;/// <summary>///MessageBox 的摘要说明/// </summary>public class MessageBox{ public MessageBox() { // //TODO: 在此处添加构造函数逻辑 // }  public static void Show(string messageInfo)  {    HttpContext.Current.Response.Write("<script>alert('"+messageInfo+"')</script>");  }  public static void Show(string messageInfo, string pagePath)  {    HttpContext.Current.Response.Write("<script>alert('"+messageInfo+"');location='"+pagePath+"'</script>");  }  public static void ShowPath(string pagePath)  {    HttpContext.Current.Response.Write("<script>location='" + pagePath + "'</script>");  }}

#pragma warning disable 1591//------------------------------------------------------------------------------// <auto-generated>//   此代码由工具生成。//   运行库版本:2.0.50727.1891////   对此文件的更改可能会导致不正确的行为，并且如果//   重新生成代码，这些更改将会丢失。// </auto-generated>//------------------------------------------------------------------------------using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Data.Linq;using System.Data.Linq.Mapping;using System.Linq;using System.Linq.Expressions;using System.Reflection;[System.Data.Linq.Mapping.DatabaseAttribute(Name="MenuLinq")]public partial class UserInformationDataContext : System.Data.Linq.DataContext{  private static System.Data.Linq.Mapping.MappingSource mappingSource = new AttributeMappingSource();  #region Extensibility Method Definitions partial void OnCreated(); partial void Insert用户信息(用户信息 instance); partial void Update用户信息(用户信息 instance); partial void Delete用户信息(用户信息 instance); partial void Insert订餐信息(订餐信息 instance); partial void Update订餐信息(订餐信息 instance); partial void Delete订餐信息(订餐信息 instance); partial void Insert菜样信息(菜样信息 instance); partial void Update菜样信息(菜样信息 instance); partial void Delete菜样信息(菜样信息 instance); #endregion  public UserInformationDataContext() :   base(global::System.Configuration.ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString, mappingSource) { OnCreated(); }  public UserInformationDataContext(string connection) :   base(connection, mappingSource) { OnCreated(); }  public UserInformationDataContext(System.Data.IDbConnection connection) :   base(connection, mappingSource) { OnCreated(); }  public UserInformationDataContext(string connection, System.Data.Linq.Mapping.MappingSource mappingSource) :   base(connection, mappingSource) { OnCreated(); }  public UserInformationDataContext(System.Data.IDbConnection connection, System.Data.Linq.Mapping.MappingSource mappingSource) :   base(connection, mappingSource) { OnCreated(); }  public System.Data.Linq.Table<用户信息> 用户信息 { get {  return this.GetTable<用户信息>(); } }  public System.Data.Linq.Table<订餐信息> 订餐信息 { get {  return this.GetTable<订餐信息>(); } }  public System.Data.Linq.Table<菜样信息> 菜样信息 { get {  return this.GetTable<菜样信息>(); } }}[Table(Name="dbo.用户信息")]public partial class 用户信息 : INotifyPropertyChanging, INotifyPropertyChanged{  private static PropertyChangingEventArgs emptyChangingEventArgs = new PropertyChangingEventArgs(String.Empty);  private int _序号;  private string _用户名;  private string _用户密码;  private string _邮箱;  private string _住址;  private string _手机号;   #region Extensibility Method Definitions  partial void OnLoaded();  partial void OnValidate(System.Data.Linq.ChangeAction action);  partial void OnCreated();  partial void On序号Changing(int value);  partial void On序号Changed();  partial void On用户名Changing(string value);  partial void On用户名Changed();  partial void On用户密码Changing(string value);  partial void On用户密码Changed();  partial void On邮箱Changing(string value);  partial void On邮箱Changed();  partial void On住址Changing(string value);  partial void On住址Changed();  partial void On手机号Changing(string value);  partial void On手机号Changed();  #endregion  public 用户信息() { OnCreated(); }  [Column(Storage="_序号", AutoSync=AutoSync.OnInsert, DbType="Int NOT NULL IDENTITY", IsPrimaryKey=true, IsDbGenerated=true)] public int 序号 { get {  return this._序号; } set {  if ((this._序号 != value))  {  this.On序号Changing(value);  this.SendPropertyChanging();  this._序号 = value;  this.SendPropertyChanged("序号");  this.On序号Changed();  } } }  [Column(Storage="_用户名", DbType="NChar(10)")] public string 用户名 { get {  return this._用户名; } set {  if ((this._用户名 != value))  {  this.On用户名Changing(value);  this.SendPropertyChanging();  this._用户名 = value;  this.SendPropertyChanged("用户名");  this.On用户名Changed();  } } }  [Column(Storage="_用户密码", DbType="VarChar(50)")] public string 用户密码 { get {  return this._用户密码; } set {  if ((this._用户密码 != value))  {  this.On用户密码Changing(value);  this.SendPropertyChanging();  this._用户密码 = value;  this.SendPropertyChanged("用户密码");  this.On用户密码Changed();  } } }  [Column(Storage="_邮箱", DbType="VarChar(50)")] public string 邮箱 { get {  return this._邮箱; } set {  if ((this._邮箱 != value))  {  this.On邮箱Changing(value);  this.SendPropertyChanging();  this._邮箱 = value;  this.SendPropertyChanged("邮箱");  this.On邮箱Changed();  } } }  [Column(Storage="_住址", DbType="VarChar(50)")] public string 住址 { get {  return this._住址; } set {  if ((this._住址 != value))  {  this.On住址Changing(value);  this.SendPropertyChanging();  this._住址 = value;  this.SendPropertyChanged("住址");  this.On住址Changed();  } } }  [Column(Storage="_手机号", DbType="VarChar(50)")] public string 手机号 { get {  return this._手机号; } set {  if ((this._手机号 != value))  {  this.On手机号Changing(value);  this.SendPropertyChanging();  this._手机号 = value;  this.SendPropertyChanged("手机号");  this.On手机号Changed();  } } }  public event PropertyChangingEventHandler PropertyChanging;  public event PropertyChangedEventHandler PropertyChanged;  protected virtual void SendPropertyChanging() { if ((this.PropertyChanging != null)) {  this.PropertyChanging(this, emptyChangingEventArgs); } }  protected virtual void SendPropertyChanged(String propertyName) { if ((this.PropertyChanged != null)) {  this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } }}[Table(Name="dbo.订餐信息")]public partial class 订餐信息 : INotifyPropertyChanging, INotifyPropertyChanged{  private static PropertyChangingEventArgs emptyChangingEventArgs = new PropertyChangingEventArgs(String.Empty);  private int _序号;  private System.Nullable<int> _菜样编号;  private string _菜名;  private string _菜样图片;  private System.Nullable<int> _份数;  private System.Nullable<int> _菜价;  private System.Nullable<int> _应付金额;  private string _订餐日期;  private string _用户名;   #region Extensibility Method Definitions  partial void OnLoaded();  partial void OnValidate(System.Data.Linq.ChangeAction action);  partial void OnCreated();  partial void On序号Changing(int value);  partial void On序号Changed();  partial void On菜样编号Changing(System.Nullable<int> value);  partial void On菜样编号Changed();  partial void On菜名Changing(string value);  partial void On菜名Changed();  partial void On菜样图片Changing(string value);  partial void On菜样图片Changed();  partial void On份数Changing(System.Nullable<int> value);  partial void On份数Changed();  partial void On菜价Changing(System.Nullable<int> value);  partial void On菜价Changed();  partial void On应付金额Changing(System.Nullable<int> value);  partial void On应付金额Changed();  partial void On订餐日期Changing(string value);  partial void On订餐日期Changed();  partial void On用户名Changing(string value);  partial void On用户名Changed();  #endregion  public 订餐信息() { OnCreated(); }  [Column(Storage="_序号", AutoSync=AutoSync.OnInsert, DbType="Int NOT NULL IDENTITY", IsPrimaryKey=true, IsDbGenerated=true)] public int 序号 { get {  return this._序号; } set {  if ((this._序号 != value))  {  this.On序号Changing(value);  this.SendPropertyChanging();  this._序号 = value;  this.SendPropertyChanged("序号");  this.On序号Changed();  } } }  [Column(Storage="_菜样编号", DbType="Int")] public System.Nullable<int> 菜样编号 { get {  return this._菜样编号; } set {  if ((this._菜样编号 != value))  {  this.On菜样编号Changing(value);  this.SendPropertyChanging();  this._菜样编号 = value;  this.SendPropertyChanged("菜样编号");  this.On菜样编号Changed();  } } }  [Column(Storage="_菜名", DbType="NChar(10)")] public string 菜名 { get {  return this._菜名; } set {  if ((this._菜名 != value))  {  this.On菜名Changing(value);  this.SendPropertyChanging();  this._菜名 = value;  this.SendPropertyChanged("菜名");  this.On菜名Changed();  } } }  [Column(Storage="_菜样图片", DbType="NChar(30)")] public string 菜样图片 { get {  return this._菜样图片; } set {  if ((this._菜样图片 != value))  {  this.On菜样图片Changing(value);  this.SendPropertyChanging();  this._菜样图片 = value;  this.SendPropertyChanged("菜样图片");  this.On菜样图片Changed();  } } }  [Column(Storage="_份数", DbType="Int")] public System.Nullable<int> 份数 { get {  return this._份数; } set {  if ((this._份数 != value))  {  this.On份数Changing(value);  this.SendPropertyChanging();  this._份数 = value;  this.SendPropertyChanged("份数");  this.On份数Changed();  } } }  [Column(Storage="_菜价", DbType="Int")] public System.Nullable<int> 菜价 { get {  return this._菜价; } set {  if ((this._菜价 != value))  {  this.On菜价Changing(value);  this.SendPropertyChanging();  this._菜价 = value;  this.SendPropertyChanged("菜价");  this.On菜价Changed();  } } }  [Column(Storage="_应付金额", DbType="Int")] public System.Nullable<int> 应付金额 { get {  return this._应付金额; } set {  if ((this._应付金额 != value))  {  this.On应付金额Changing(value);  this.SendPropertyChanging();  this._应付金额 = value;  this.SendPropertyChanged("应付金额");  this.On应付金额Changed();  } } }  [Column(Storage="_订餐日期", DbType="NVarChar(50)")] public string 订餐日期 { get {  return this._订餐日期; } set {  if ((this._订餐日期 != value))  {  this.On订餐日期Changing(value);  this.SendPropertyChanging();  this._订餐日期 = value;  this.SendPropertyChanged("订餐日期");  this.On订餐日期Changed();  } } }  [Column(Storage="_用户名", DbType="NChar(15)")] public string 用户名 { get {  return this._用户名; } set {  if ((this._用户名 != value))  {  this.On用户名Changing(value);  this.SendPropertyChanging();  this._用户名 = value;  this.SendPropertyChanged("用户名");  this.On用户名Changed();  } } }  public event PropertyChangingEventHandler PropertyChanging;  public event PropertyChangedEventHandler PropertyChanged;  protected virtual void SendPropertyChanging() { if ((this.PropertyChanging != null)) {  this.PropertyChanging(this, emptyChangingEventArgs); } }  protected virtual void SendPropertyChanged(String propertyName) { if ((this.PropertyChanged != null)) {  this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } }}[Table(Name="dbo.菜样信息")]public partial class 菜样信息 : INotifyPropertyChanging, INotifyPropertyChanged{  private static PropertyChangingEventArgs emptyChangingEventArgs = new PropertyChangingEventArgs(String.Empty);  private int _序号;  private int _菜样编号;  private string _菜名;  private string _菜样类型;  private string _菜样图片;  private string _厨师;  private System.Nullable<int> _现在价格;  private System.Nullable<int> _优惠价格;  private string _创菜时间;   #region Extensibility Method Definitions  partial void OnLoaded();  partial void OnValidate(System.Data.Linq.ChangeAction action);  partial void OnCreated();  partial void On序号Changing(int value);  partial void On序号Changed();  partial void On菜样编号Changing(int value);  partial void On菜样编号Changed();  partial void On菜名Changing(string value);  partial void On菜名Changed();  partial void On菜样类型Changing(string value);  partial void On菜样类型Changed();  partial void On菜样图片Changing(string value);  partial void On菜样图片Changed();  partial void On厨师Changing(string value);  partial void On厨师Changed();  partial void On现在价格Changing(System.Nullable<int> value);  partial void On现在价格Changed();  partial void On优惠价格Changing(System.Nullable<int> value);  partial void On优惠价格Changed();  partial void On创菜时间Changing(string value);  partial void On创菜时间Changed();  #endregion  public 菜样信息() { OnCreated(); }  [Column(Storage="_序号", AutoSync=AutoSync.OnInsert, DbType="Int NOT NULL IDENTITY", IsPrimaryKey=true, IsDbGenerated=true)] public int 序号 { get {  return this._序号; } set {  if ((this._序号 != value))  {  this.On序号Changing(value);  this.SendPropertyChanging();  this._序号 = value;  this.SendPropertyChanged("序号");  this.On序号Changed();  } } }  [Column(Storage="_菜样编号", DbType="Int NOT NULL")] public int 菜样编号 { get {  return this._菜样编号; } set {  if ((this._菜样编号 != value))  {  this.On菜样编号Changing(value);  this.SendPropertyChanging();  this._菜样编号 = value;  this.SendPropertyChanged("菜样编号");  this.On菜样编号Changed();  } } }  [Column(Storage="_菜名", DbType="NChar(10)")] public string 菜名 { get {  return this._菜名; } set {  if ((this._菜名 != value))  {  this.On菜名Changing(value);  this.SendPropertyChanging();  this._菜名 = value;  this.SendPropertyChanged("菜名");  this.On菜名Changed();  } } }  [Column(Storage="_菜样类型", DbType="NChar(10)")] public string 菜样类型 { get {  return this._菜样类型; } set {  if ((this._菜样类型 != value))  {  this.On菜样类型Changing(value);  this.SendPropertyChanging();  this._菜样类型 = value;  this.SendPropertyChanged("菜样类型");  this.On菜样类型Changed();  } } }  [Column(Storage="_菜样图片", DbType="NVarChar(50)")] public string 菜样图片 { get {  return this._菜样图片; } set {  if ((this._菜样图片 != value))  {  this.On菜样图片Changing(value);  this.SendPropertyChanging();  this._菜样图片 = value;  this.SendPropertyChanged("菜样图片");  this.On菜样图片Changed();  } } }  [Column(Storage="_厨师", DbType="NChar(15)")] public string 厨师 { get {  return this._厨师; } set {  if ((this._厨师 != value))  {  this.On厨师Changing(value);  this.SendPropertyChanging();  this._厨师 = value;  this.SendPropertyChanged("厨师");  this.On厨师Changed();  } } }  [Column(Storage="_现在价格", DbType="Int")] public System.Nullable<int> 现在价格 { get {  return this._现在价格; } set {  if ((this._现在价格 != value))  {  this.On现在价格Changing(value);  this.SendPropertyChanging();  this._现在价格 = value;  this.SendPropertyChanged("现在价格");  this.On现在价格Changed();  } } }  [Column(Storage="_优惠价格", DbType="Int")] public System.Nullable<int> 优惠价格 { get {  return this._优惠价格; } set {  if ((this._优惠价格 != value))  {  this.On优惠价格Changing(value);  this.SendPropertyChanging();  this._优惠价格 = value;  this.SendPropertyChanged("优惠价格");  this.On优惠价格Changed();  } } }  [Column(Storage="_创菜时间", DbType="NChar(20)")] public string 创菜时间 { get {  return this._创菜时间; } set {  if ((this._创菜时间 != value))  {  this.On创菜时间Changing(value);  this.SendPropertyChanging();  this._创菜时间 = value;  this.SendPropertyChanged("创菜时间");  this.On创菜时间Changed();  } } }  public event PropertyChangingEventHandler PropertyChanging;  public event PropertyChangedEventHandler PropertyChanged;  protected virtual void SendPropertyChanging() { if ((this.PropertyChanging != null)) {  this.PropertyChanging(this, emptyChangingEventArgs); } }  protected virtual void SendPropertyChanged(String propertyName) { if ((this.PropertyChanged != null)) {  this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } }}#pragma warning restore 1591