admin_articleadd.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.admin
{
	/// <summary>
	/// admin_articleAdd 的摘要说明。
	/// </summary>
	public class admin_articleAdd : 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;	

		protected System.Web.UI.WebControls.Label myLabel;
		protected System.Web.UI.WebControls.CheckBox Headline;
		protected System.Web.UI.WebControls.CheckBox HighLight;
		protected System.Web.UI.HtmlControls.HtmlInputText Title;
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator3;
		protected System.Web.UI.WebControls.CustomValidator CustomValidator1;
		protected System.Web.UI.HtmlControls.HtmlTextArea Summary;
		protected System.Web.UI.HtmlControls.HtmlInputText Key;
		protected System.Web.UI.HtmlControls.HtmlInputText Author;
		protected System.Web.UI.HtmlControls.HtmlInputText Source;
		protected System.Web.UI.WebControls.RequiredFieldValidator Requiredfieldvalidator2;
		protected System.Web.UI.WebControls.Button Submit;		
		protected System.Web.UI.WebControls.RequiredFieldValidator RequiredFieldValidator1;
		protected System.Web.UI.WebControls.DropDownList ClassName;
		protected FreeTextBoxControls.FreeTextBox FreeTextBox1;
		public string path;

		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 )
			{
				string us=(string)Session["userclass"];
				if(us.Trim()=="系统管理员"||(int)Session["addnews"]==1||(int)Session["addnchk"]==1) 
				{
					getClass();		//根据权限设置分类和ClassName控件的下拉列表				
				}
				else
				{
					Page.Visible=false;
				}	
			}
		}

		private void getClass()									 //根据权限设置分类和ClassName控件的下拉列表
		{	
   		 	string  da=(string)Session["userclass"]	;
			string  classname=(string)Session["classname"];
			if(da.Trim()=="系统管理员")
			{
				SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]);//连接字符串,建立连接
				SqlDataAdapter1 = new SqlDataAdapter();
				SqlDataAdapter1.SelectCommand=new SqlCommand("sp_selFclassAll",SqlConnection1);
				SqlDataAdapter1.SelectCommand.CommandType=CommandType.StoredProcedure ;
				DataSet1=new DataSet();		
				try
				{
					SqlDataAdapter1.Fill(DataSet1,"ClassName");
				}
				catch (SqlException e1)
				{
					myLabel.Text ="数据库操作错误："+e1.Message;				
				}
				ClassName.DataSource=DataSet1.Tables["ClassName"].DefaultView;
				ClassName.DataTextField="className";
				ClassName.DataValueField="className";
				ClassName.DataBind(); 
				SqlConnection1.Close();
			}
			else	//不是系统管理员,只能管理一个新闻分类
			{
				ListItem d=new ListItem(classname,classname);				
				ClassName.Items.Add(d);
			}
		}

		private void addhints()				   //增加发表文章数
		{
			SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]); //取连接字符串,并建立连接
			SqlCommand1=new SqlCommand("sp_addNum",SqlConnection1); 
			SqlCommand1.CommandType=CommandType.StoredProcedure;
			SqlCommand1.Parameters.Add(new SqlParameter("@username",SqlDbType.Char,200));
			string username=(string)Session["username"];
			SqlCommand1.Parameters["@username"].Value = username.Trim();
			try
			{
				SqlConnection1.Open();
				SqlCommand1.ExecuteNonQuery();										
			}
			catch (SqlException e1)
			{
				myLabel.Text ="数据库操作错误："+e1.Message;
			}
			SqlConnection1.Close();
		}

		private void addClassNum()
		{
			SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]); //取连接字符串,并建立连接
			SqlCommand1=new SqlCommand("sp_addClassNum",SqlConnection1); 
			SqlCommand1.CommandType=CommandType.StoredProcedure;
			SqlCommand1.Parameters.Add(new SqlParameter("@className",SqlDbType.Char,200));
			SqlCommand1.Parameters["@className"].Value = ClassName.SelectedItem.Text.Trim();
			string username=(string)Session["username"];
			try
			{
				SqlConnection1.Open();
				SqlCommand1.ExecuteNonQuery();										
			}
			catch (SqlException e1)
			{
				myLabel.Text ="数据库操作错误："+e1.Message;
			}
			SqlConnection1.Close();
		}

		private void addArticle()							   //发表文章
		{
			int hl=0;
			int HL=0;			
			if(Headline.Checked)								 //获得是否是头条新闻
			{
				hl=1;
			}
			else  
			{
				hl=0;
			}
			if(HighLight.Checked)							  //获得是否新闻醒目
			{
				HL=1;
			}
			else 
			{
				HL=0;
			}
			//SqlCommand cmd=new SqlCommand("sp_addArticle",con);			//建立命令
			//cmd.CommandType=CommandType.StoredProcedure;
			SqlConnection1 = new SqlConnection(ConfigurationSettings.AppSettings["dsn"]); //取连接字符串,并建立连接
			SqlCommand1=new SqlCommand("sp_addArticle1",SqlConnection1);
			SqlCommand1.CommandType=CommandType.StoredProcedure;
			SqlCommand1.Parameters.Add(new SqlParameter("@content",SqlDbType.NText));			//调用并设置存储过程参数
			SqlCommand1.Parameters["@content"].Value = Server.HtmlDecode(FreeTextBox1.Text.Trim());	//获得新闻内容
			SqlCommand1.Parameters.Add(new SqlParameter("@title",SqlDbType.NVarChar,500));			
			SqlCommand1.Parameters["@title"].Value =Title.Value.Trim();							 //获得新闻标题
			SqlCommand1.Parameters.Add(new SqlParameter("@classname",SqlDbType.Char,200));			
			SqlCommand1.Parameters["@classname"].Value = ClassName.SelectedItem.Text.Trim() ;		 //获得分类名
			SqlCommand1.Parameters.Add(new SqlParameter("@username",SqlDbType.Char,200));			
			SqlCommand1.Parameters["@username"].Value =(string)Session["username"];	
			SqlCommand1.Parameters.Add(new SqlParameter("@headline",SqlDbType.Int));			
			SqlCommand1.Parameters["@headline"].Value =hl;
			SqlCommand1.Parameters.Add(new SqlParameter("@highlight",SqlDbType.Int));			
			SqlCommand1.Parameters["@highlight"].Value =HL;	
			SqlCommand1.Parameters.Add(new SqlParameter("@summary",SqlDbType.Char,400));			
			SqlCommand1.Parameters["@summary"].Value =Summary.Value.Trim();					 //获得新闻简介
			SqlCommand1.Parameters.Add(new SqlParameter("@Nkey",SqlDbType.Char,400));			
			SqlCommand1.Parameters["@Nkey"].Value =Key.Value.Trim();					     //获得相关新闻		
			SqlCommand1.Parameters.Add(new SqlParameter("@writer",SqlDbType.Char,100));			
			SqlCommand1.Parameters["@writer"].Value =Author.Value.Trim() ;						 //获得作者名
			SqlCommand1.Parameters.Add(new SqlParameter("@source",SqlDbType.Char,100));			
			SqlCommand1.Parameters["@source"].Value = Source.Value.Trim();
			SqlCommand1.Parameters.Add(new SqlParameter("@popedom",SqlDbType.Char,100));			
			SqlCommand1.Parameters["@popedom"].Value = Session["power"];
			SqlCommand1.Parameters.Add(new SqlParameter("@checkup",SqlDbType.Int));	
			string ul=(string)Session["userclass"];
			if(ul.Trim()=="系统管理员")
			{
				SqlCommand1.Parameters["@checkup"].Value = 1;
			}
			else 
			{
				SqlCommand1.Parameters["@checkup"].Value = (int)Session["addnchk"];	
			}			
			try
			{
				SqlConnection1.Open();
				int d = SqlCommand1.ExecuteNonQuery();
				if(d>0)
				{
					myLabel.Text="添加新闻成功";
				}
				else 
				{
					myLabel.Text="添加新闻错误";
				}						
			}
			catch (SqlException e1)
			{
				myLabel.Text ="数据库操作错误："+e1.Message;
			}
			SqlConnection1.Close();
		}

		#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.CustomValidator1.ServerValidate += new System.Web.UI.WebControls.ServerValidateEventHandler(this.CustomValidator1_ServerValidate);
			this.Submit.Click += new System.EventHandler(this.Submit_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void CustomValidator1_ServerValidate(object source, System.Web.UI.WebControls.ServerValidateEventArgs args)
		{
			if(Summary.Value.Length>200)
			{
				args.IsValid=false   ;
			}
			else
			{
				args.IsValid=true;
			}
		}

		private void Submit_Click(object sender, System.EventArgs e)	//添加新闻
		{	
			if(Page.IsValid)
			{
				addArticle(); 
				string userclass=(string)Session["userclass"];
				int i=(int)Session["addnchk"];
				if(userclass.Trim()=="系统管理员"||i==1)
				{
					addhints();			 //增加发表文章数
					addClassNum();
				}
			}
		}
	}
}