roomadd.aspx.cs

宾馆客房预订系统源码,附开发文档以及说明,适合毕业设计

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 System.Configuration ;
using System.Data .SqlClient ;


namespace HMS
{
	/// <summary>
	/// RoomAdd 的摘要说明。
	/// </summary>
	public class RoomAdd : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button btn_submit;
		protected System.Web.UI.WebControls.TextBox tbx_rid;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfv_rid;
		protected System.Web.UI.WebControls.RequiredFieldValidator rfv_rtype;
		protected System.Web.UI.WebControls.TextBox tbx_rposition;
		protected System.Web.UI.WebControls.TextBox tbx_rdescribe;
		protected System.Web.UI.WebControls.CustomValidator ctv_rid;
		protected System.Web.UI.WebControls.HyperLink hlk_roommanage;
		protected System.Web.UI.WebControls.DropDownList ddl_rtype;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			//绑定房间类型信息下拉列表框
			if(!IsPostBack)
			{
				string strconn= ConfigurationSettings.AppSettings["dsn"];
				//连接本地计算机的HMS数据库
				SqlConnection cn0= new SqlConnection (strconn);
				cn0.Open ();
				string mysql="select * from RoomType ";
				SqlCommand cm=new SqlCommand  (mysql,cn0);
				SqlDataReader dr=cm.ExecuteReader ();
				while(dr.Read ())
				{
					ddl_rtype.Items .Add (new ListItem(dr["tname"].ToString(),dr["tid"].ToString()) );
				}
				cn0.Close ();
			}
		}

		//验证新加房间号是否有效
		public void ctv_rid_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{//从文件Web.config中读取连接字符串
			string strconn= ConfigurationSettings.AppSettings["dsn"];
			//连接本地计算机的HMS数据库
			SqlConnection cn= new SqlConnection (strconn);
			cn.Open ();
			//构造SQL语句，该语句在GuestRoom表中检查房间号数据库中是否已存在
			string mysql= "select * from GuestRoom where rid='"+tbx_rid.Text +"'";
			//创建Command对象
			SqlCommand cm=new SqlCommand  (mysql,cn);
			//执行ExecuteReader ()方法
			SqlDataReader dr=cm.ExecuteReader ();
			if(dr.Read ())
			{
				args.IsValid =false;//房间号已在数据库中存在
			}
			else
			{
				args.IsValid =true;//房间号尚不存在
			}
			//关闭连接
			cn.Close();
		
		}

		private void btn_submit_Click(object sender, System.EventArgs e)
		{
			if(Page.IsValid )
			{//对GuestRoom表进行添加	
				//从文件Web.config中读取连接字符串
				string strconn= ConfigurationSettings.AppSettings["dsn"];
				//连接本地计算机的HMS数据库
				SqlConnection cn= new SqlConnection (strconn);
				cn.Open ();
				//利用Command对象调用存储过程
				SqlCommand cm=new SqlCommand  ("guestroomadd",cn);
				//将命令类型转为存储类型
				cm.CommandType =CommandType.StoredProcedure ;
				//往存储过程中添加参数
				cm.Parameters .Add ("@RID",SqlDbType.VarChar);
				cm.Parameters .Add ("@RType",SqlDbType.Int );
				cm.Parameters .Add ("@RPosition",SqlDbType.VarChar);
				cm.Parameters .Add ("@RDescribe",SqlDbType.VarChar);
				//给存储过程的参数付值
				cm.Parameters ["@RID"].Value =tbx_rid.Text .ToString ();
				cm.Parameters ["@RType"].Value =Convert.ToInt32 (ddl_rtype.SelectedItem .Value.ToString ());
				cm.Parameters ["@RPosition"].Value =tbx_rposition.Text .ToString ();
				cm.Parameters ["@RDescribe"].Value =tbx_rdescribe.Text .ToString ();
				cm.ExecuteNonQuery ();
				//关闭连接
				cn.Close();
			//对RoomState表进行添加
				cn.Open ();
				SqlCommand cm0=new SqlCommand  ("roomstateadd",cn);
				cm0.CommandType =CommandType.StoredProcedure ;
				cm0.Parameters .Add ("@SRID",SqlDbType.VarChar);
				cm0.Parameters ["@SRID"].Value =tbx_rid.Text .ToString ();
				cm0.ExecuteNonQuery ();
				cn.Close ();
				Response.Redirect("roommanage.aspx");
			}
		}
		#region Web Form Designer generated code
		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.btn_submit.Click += new System.EventHandler(this.btn_submit_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion
	}
}