show.aspx.cs

非常完整的新闻发布系统

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.Data.SqlClient;
using System.Configuration;

namespace WebNews
{
	/// <summary>
	/// show 的摘要说明。
	/// </summary>
	public class show : System.Web.UI.Page
	{
		protected System.Data.SqlClient.SqlConnection SqlConnection1;		//添加数据库的操作对象
		protected System.Data.SqlClient.SqlDataAdapter SqlDataAdapter1;
		protected System.Data.DataSet DataSet1;
		protected System.Data.SqlClient.SqlCommand SqlCommand1;
		protected System.Data.SqlClient.SqlDataReader SqlDataReader1;		

		public string title;
		public string content;
		public Int64 aid;
		public string classname;
		public string Nkey;
		public string writer;
		public DateTime de;
		public string source;
		public Int64 hints;

		protected System.Web.UI.WebControls.Repeater myrt;
		protected System.Web.UI.HtmlControls.HtmlTextArea body;
		protected System.Web.UI.HtmlControls.HtmlInputText username;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Label PageLabel;
		protected System.Web.UI.WebControls.Repeater Repeater1;
		protected System.Web.UI.WebControls.DataList DataList1;
		protected System.Web.UI.WebControls.Label BackLabel;
		protected System.Web.UI.WebControls.RadioButtonList face;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator2;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.Label AuthorLabel;
		protected System.Web.UI.WebControls.Label BodyLabel;
		protected System.Web.UI.WebControls.Label SourceLabel;
		protected System.Web.UI.WebControls.Label HitsLabel;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label TimeLabel;
		
		
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			if(!Page.IsPostBack)
			{
	            addHints();
			    getArticle();
			    getRemark();
			}
		}

		private void addHints()
		{
			SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]); //取连接字符串,并建立连接
			SqlCommand1=new SqlCommand("sp_addArticleHints",SqlConnection1); 
			SqlCommand1.CommandType=CommandType.StoredProcedure;
			SqlCommand1.Parameters.Add(new SqlParameter("@articleid",SqlDbType.BigInt));
			SqlCommand1.Parameters["@articleid"].Value = Request["articleid"];
			try
			{
				SqlConnection1.Open();
				int i=SqlCommand1.ExecuteNonQuery();										
			}
			catch (SqlException e1)
			{
				Label2.Text ="数据库操作错误："+e1.Message;
			}
			SqlConnection1.Close();
		}
				
		private void getArticle()									 //取得新闻内容
		{	
			SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]);//取连接字符串,并建立连接
			SqlCommand1=new SqlCommand("sp_selArticleById",SqlConnection1); 
			SqlCommand1.CommandType=CommandType.StoredProcedure;
			SqlCommand1.Parameters.Add(new SqlParameter("@articleid",SqlDbType.BigInt));
			SqlCommand1.Parameters["@articleid"].Value = Request["articleid"];
			try
			{
				SqlConnection1.Open();
				SqlDataReader1=SqlCommand1.ExecuteReader();										
			}
			catch (SqlException e1)
			{
				Label1.Text ="数据库操作错误："+e1.Message;
			}
			if(SqlDataReader1.Read()==true)   //如果改变了用户名,就要检查是否与已有的记录相同
			{
				aid=SqlDataReader1.GetInt64(0);
				title=SqlDataReader1.GetString(2);
				content=SqlDataReader1.GetString(1);
				classname=SqlDataReader1.GetString(3);
				Nkey=SqlDataReader1.GetString(8);
				writer=SqlDataReader1.GetString(9);
				source=SqlDataReader1.GetString(10);
				hints=SqlDataReader1.GetInt64(11);
				de=SqlDataReader1.GetDateTime(12);					
				SqlConnection1.Close();
			}
			SqlConnection1.Close();			
		}		
		
		private void getRemark()	   //获得评论
		{
			SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]);//取连接字符串,建立连接
			SqlDataAdapter1 = new SqlDataAdapter();
			SqlDataAdapter1.SelectCommand=new SqlCommand("sp_selRemarkByArticleId",SqlConnection1);
			SqlDataAdapter1.SelectCommand.CommandType=CommandType.StoredProcedure ;
			SqlDataAdapter1.SelectCommand.Parameters.Add("@articleid",SqlDbType.BigInt);
			SqlDataAdapter1.SelectCommand.Parameters["@articleid"].Value=Request["articleid"];
			DataSet1=new DataSet();		
			try
			{
				SqlDataAdapter1.Fill(DataSet1,"Article");
			}
			catch (SqlException e1)
			{
				Label1.Text ="数据库操作错误："+e1.Message;				
			}
			DataList1.DataSource=DataSet1;
			DataList1.DataBind();			
		}

		private void addRemark()
		{
			string a=username.Value;
			string b=face.SelectedItem.Value;
			string c=body.Value;
			string d=(string)Request.UserHostAddress.ToString();
			SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]);//取连接字符串,并建立连接
			SqlCommand1=new SqlCommand("sp_addRemark",SqlConnection1); 
			SqlCommand1.CommandType=CommandType.StoredProcedure;
			SqlCommand1.Parameters.Add(new SqlParameter("@articleid",SqlDbType.BigInt));
			SqlCommand1.Parameters["@articleid"].Value = Request["articleid"];
			SqlCommand1.Parameters.Add(new SqlParameter("@username",SqlDbType.Char,200));
			SqlCommand1.Parameters["@username"].Value = a.Trim();
			SqlCommand1.Parameters.Add(new SqlParameter("@body",SqlDbType.Char,1000));
			SqlCommand1.Parameters["@body"].Value = c.Trim();
			SqlCommand1.Parameters.Add(new SqlParameter("@face",SqlDbType.Char,50));
			SqlCommand1.Parameters["@face"].Value = b.Trim();
			SqlCommand1.Parameters.Add(new SqlParameter("@ip",SqlDbType.Char,100));
			SqlCommand1.Parameters["@ip"].Value = d.Trim();
			try
			{
				SqlConnection1.Open();
				int i=SqlCommand1.ExecuteNonQuery();										
			}
			catch (SqlException e1)
			{
				Label2.Text ="数据库操作错误："+e1.Message;
			}
			SqlConnection1.Close();
		}
	
		public string show1(object de)
		{
			string g;
		    g=(string)de;
			return g.Trim() ;
		}	

		#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.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e)
		{
			if(body.Value.Length>200)
			{
				Label2.Text="评论太长了！";
			}
			else 
			{
				addRemark();
				getRemark();
				getArticle();
			}
		}

	
	}
}