massage.aspx.cs

自己写的一个网上图书馆 可实现图书上传借阅等功能

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace e_librarys
{
	/// <summary>
	/// Novel 的摘要说明。
	/// </summary>
	public partial class Novel : System.Web.UI.Page
	{
	
		protected void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql=Session["StrSql"].ToString();
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
			
		}

		#region Web 窗体设计器生成的代码
		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 Button_All_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info";
           
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
			
		}

		protected void Button_HomePage_Click(object sender, System.EventArgs e)
		{
			if(Session["U_ID"]!=null)
                Response.Redirect("Welcome.aspx");
            else
                Response.Redirect("Begin.aspx");
		}

		protected void Button_MathPhysicsChemistry_Click(object sender, System.EventArgs e)
		{
			
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='数理化'  and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		
}

		protected void Button_ComputerBooks_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='电脑书籍' and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		}

		protected void Button_EnglishReading_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='英语读物' and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		}

		protected void Button_PoliticsEconomics_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='政治经济' and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		}

		protected void Button_PhilosophyReligion_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='哲学宗教' and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		}

		protected void Button_ForiegnLiterature_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='外国文学' and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		}

		protected void Button_Poetry_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='诗歌' and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		}

		protected void Button_Novel_Click(object sender, System.EventArgs e)
		{
			SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
			Conn.Open();
			string StrSql="select * from Book_Info a,Book_Style b,Book_DetailStyle c where B_S_Name='小说' and b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID";
			SqlDataAdapter Da = new SqlDataAdapter(StrSql,Conn);
			DataSet Ds = new DataSet();
			Da.Fill(Ds);
			DataList_Massage.DataSource = Ds.Tables[0];
			DataList_Massage.DataBind();
			Conn.Close();
		}

		protected void DataList_Massage_SelectedIndexChanged(object sender, System.EventArgs e)
		{
		
		}



        protected void Button_Select_Click(object sender, EventArgs e)
        {
            SqlConnection Conn = new SqlConnection("server=(local);database=e_library;uid=sa;pwd=");
            Conn.Open();
            string StrSql = "select * from User_Info";

            //判断选择查询类型
            if (Request.Form["Select"].ToString() != "")
            {
                switch (Request.Form["Select"].ToString())
                {
                    case "ID": StrSql = "select * from Book_Info where B_ID='" + TextBox.Text.ToString() + "'"; break;
                    case "Name": StrSql = "select * from Book_Info where B_Name like '%" + TextBox.Text.ToString() + "%'"; break;
                    case "BDSID": StrSql = "select * from Book_Info a,Book_Style b,Book_DetailStyle c where  b.B_S_ID=c.B_S_ID and a.B_BDS_ID=c.B_DS_ID and B_S_Name like '%" + TextBox.Text.ToString() + "%'"; break;
                    case "Director": StrSql = "select * from Book_Info where B_Director like '%" + TextBox.Text.ToString() + "%'"; break;
                    case "Issuer": StrSql = "select * from Book_Info where B_Issuer like '%" + TextBox.Text.ToString() + "%'"; break;
                    case "RentCount": StrSql = "select * from Book_Info where B_RentCount='" + TextBox.Text.ToString() + "'"; break;
                    case "Count": StrSql = "select * from Book_Info where B_Count='" + TextBox.Text.ToString() + "'"; break;
                    case "PublishTime": StrSql = "select * from Book_Info where B_PublishTime='" + TextBox.Text.ToString() + "'"; break;
                    case "PMTID": StrSql = "select * from Book_Info,Payment where P_Price='" + TextBox.Text.ToString() + "' and P_ID=B_PMT_ID"; break;
                    default: Response.Write("<Script Language='JavaScript'>alert('你没有选择类型')</Script>"); break;
                }
            }

            SqlDataAdapter Da = new SqlDataAdapter(StrSql, Conn);
            DataSet Ds = new DataSet();
            Da.Fill(Ds);
            DataList_Massage.DataSource = Ds.Tables[0];
            DataList_Massage.DataBind();
            Conn.Close();
        }
}
}