newsmanager.aspx.cs

网络营销软件的源代码

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Configuration;
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 WebApplication8.firstPage
{
	/// <summary>
	/// newsManager 的摘要说明。
	/// </summary>
	public class newsManager : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.LinkButton LinkButton1;

		protected System.Web.UI.HtmlControls.HtmlTableCell ads;
		protected System.Web.UI.HtmlControls.HtmlTableCell shop;
		protected System.Web.UI.WebControls.Label count;

		DataView dataview;
		SqlCommand command;
	
		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(Session["userName"] == null)
				Response.Redirect("../login.aspx");
			
			if(Session["type"].ToString().Equals("个人"))
				ads.Visible = false;

			if(Session["type"].Equals("个人"))
				shop.InnerHtml = "<div align='center'><A href='shopping.aspx'><IMG height='29' src='images/shopping.gif' width='157' border='0'></A></div>";
			else if(Session["type"].Equals("企业"))
				shop.InnerHtml = "<div align='center'><A href='enterprise.aspx'><IMG height='29' src='images/shopping.gif' width='157' border='0'></A></div>";
			
			count.Text = Application["count"].ToString();

			SqlDataAdapter adapter = new SqlDataAdapter();
			command = new SqlCommand();
			SqlConnection connection = new SqlConnection(Application["market"].ToString());
			DataSet dataset = new DataSet();
			connection.Open();
			command.Connection = connection;
			adapter.SelectCommand = command;

			command.CommandText = "select * from News where (type='主页新闻' or type='每日动态' or type='社会百态' or type='"+
				"学校新闻' or type='军事信息')";
			adapter.Fill(dataset);
			dataview = new DataView(dataset.Tables[0]);

			DataGrid1.DataSource = dataview;
			DataGrid1.DataBind();
		}

		#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()
		{    
			this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
			this.DataGrid1.DeleteCommand += new System.Web.UI.WebControls.DataGridCommandEventHandler(this.DataGrid1_DeleteCommand);
			this.LinkButton1.Click += new System.EventHandler(this.LinkButton1_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void LinkButton1_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("addNews.aspx?type=新闻信息");
		}

		private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			DataGrid1.CurrentPageIndex = e.NewPageIndex;
			DataGrid1.DataSource = dataview;
			DataGrid1.DataBind();
		}

		private void DataGrid1_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			dataview.RowFilter = "id='"+DataGrid1.DataKeys[e.Item.ItemIndex].ToString()+"'";
			dataview.Delete(0);
			dataview.RowFilter = "";

			command.CommandText = "delete from News where id='"+DataGrid1.DataKeys[e.Item.ItemIndex].ToString()+"'";
			command.ExecuteNonQuery();

			if(dataview.Count%DataGrid1.PageSize == 0&&DataGrid1.CurrentPageIndex != 0)
				DataGrid1.CurrentPageIndex = DataGrid1.CurrentPageIndex -1;
			DataGrid1.DataSource = dataview;
			DataGrid1.DataBind();
		}
	}
}