roommodify.aspx.cs

这是asp.net^和Visual C++Sharp编写的串并口通讯的书籍 源代码

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>
	/// RoomModify 的摘要说明。
	/// </summary>
	public partial class RoomModify : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			if(!IsPostBack)
			{	//绑定房间类型信息下拉列表框
				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 cm0=new SqlCommand  (mysql,cn0);
				SqlDataReader dr0=cm0.ExecuteReader ();
				while(dr0.Read ())
				{
					ddl_rtype.Items .Add (new ListItem(dr0["tname"].ToString(),dr0["tid"].ToString()) );
				}
				cn0.Close ();
				//绑定各TextBox数据
				//连接本地计算机的HMS数据库
				SqlConnection cn= new SqlConnection (strconn);
				cn.Open ();
                string key = Request.QueryString["rid"].ToString();
                string sqlstr = "Select TID,Tname,Tprice,RID,Rtype,Rposition,Rdescribe from RoomType,GuestRoom where GuestRoom.RType=RoomType.TID AND GuestRoom.RID="+key;
				SqlCommand cm=new SqlCommand  (sqlstr,cn);
				SqlDataReader dr=cm.ExecuteReader ();
				if(dr.Read ())//存在对应项
				{
					lbl_rid.Text =dr["rid"].ToString ();
					tbx_rposition.Text =dr["rposition"].ToString ();
					tbx_rdescribe.Text =dr["rdescribe"].ToString ();
					ddl_rtype.Items.FindByValue(dr["rtype"].ToString ()).Selected =true;
				}
				else
				{
					Response.Write ("对不起，没有该房间信息");
					Response.End ();
				}
			}
		}

		#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()
		{    

		}
		#endregion
	}
}