roommanage.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>
	/// RoomManage 的摘要说明。
	/// </summary>
	public partial class RoomManage : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
            if (Session["uid"]!="")
            {
                if (!IsPostBack) BindGrid();
            }
            else
            {
                Page.RegisterStartupScript("", "<script>alert('请登录')</script>");
            }
		}
		public void BindGrid()
		{	//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);
			//创建SqlDataAdapter对象,调用存储过程
			SqlDataAdapter da=new SqlDataAdapter ("guestroomlist",cn);
			//创建并填充DataSet
			DataSet ds=new DataSet ();
			da.Fill (ds);
            GridView1.DataSource = ds;
            GridView1.DataKeyNames = new string[] { "RID"};
            GridView1.DataBind();
			cn.Close ();
		}
		protected void btn_search_Click(object sender, System.EventArgs e)
		{
			int varrid=0;
			try
			{
				varrid=Convert.ToInt32 (tbx_rid.Text .ToString ());
			}
			catch
			{
				Response.Write("输入房号有误，请返回！");
				Response.End();
			}
			Response.Redirect ("roommodify.aspx?rid="+varrid);
		}

		#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
        protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView1.PageIndex = e.NewPageIndex;
            BindGrid();
        }
        protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            //对GuestRoom表进行删除
            //从文件Web.config中读取连接字符串
            string strconn = ConfigurationSettings.AppSettings["dsn"];
            //连接本地计算机的数据库
            SqlConnection cn = new SqlConnection(strconn);
            cn.Open();
            SqlCommand cm = new SqlCommand("guestroomdelete", cn);
            cm.CommandType = CommandType.StoredProcedure;
            cm.Parameters.Add("@RID", SqlDbType.VarChar);
            //从GridView中取得更新内容
            cm.Parameters["@RID"].Value = GridView1.DataKeys[e.RowIndex].Value;
            cm.ExecuteNonQuery();
            cn.Close();
            GridView1.EditIndex = -1;
            BindGrid();
        }
}
}