main.aspx.cs

毕业设计——在线视频点播系统 内容很全

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;
namespace gllbysj
{
	/// <summary>
	/// main 的摘要说明。
	/// </summary>
	public class main : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.LinkButton LinkButton2;
		protected System.Web.UI.WebControls.LinkButton LinkButton1;
		protected System.Web.UI.WebControls.LinkButton LinkButton3;
		protected System.Web.UI.WebControls.LinkButton LinkButton4;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.DataList DataList1;
		
	
		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(!this.IsPostBack)
			{
				this.Label4.Text="1";
				this.bind();

			}
		}
		public void bind()
				
		{
			int aa=Convert.ToInt32(this.Label4.Text);
			SqlConnection con=new SqlConnection("server=(local);database=bysj;Trusted_Connection=yes");
			string str="select  id,name,descr='&nbsp;&nbsp;&nbsp;&nbsp;'+substring(descr,0,100)+'.......',image='<img src='+'upimage/'+substring(image,0,20)+' border=1 width=90 height=120>' from mess order by times desc";
			con.Open();
			SqlDataAdapter sda=new SqlDataAdapter();
			sda.SelectCommand=new SqlCommand(str,con);
			DataSet ds=new DataSet();
			sda.Fill(ds);
			int ab=ds.Tables[0].Rows.Count;


			System.Web.UI.WebControls.PagedDataSource ps=new PagedDataSource();
			ps.DataSource=ds.Tables[0].DefaultView;
			ps.AllowPaging=true;
			ps.PageSize=5;
		
			ps.CurrentPageIndex=aa-1;




			int aaa=ps.PageCount;
			Session["page"]=aaa;
			this.Label5.Text="共"+aaa+"页";
			this.LinkButton1.Enabled=true;
			this.LinkButton2.Enabled=true;
			//string page2=Convert.ToString(ps.PageCount);
			//this.Label4.Text=page2;
			if(aa==1)
			{
				this.LinkButton1.Enabled=false;

			}
			if(aa==ps.PageCount)
			{
				this.LinkButton2.Enabled=false;

			}

           
			this.DataList1.DataSource=ps;
			this.DataList1.DataBind();
			string a=Convert.ToString(ds.Tables[0].Rows.Count)+"部！";
			this.Label2.Text=a;
			con.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()
		{    
			this.DataList1.SelectedIndexChanged += new System.EventHandler(this.DataList1_SelectedIndexChanged);
			this.LinkButton2.Click += new System.EventHandler(this.LinkButton2_Click);
			this.LinkButton1.Click += new System.EventHandler(this.LinkButton1_Click);
			this.LinkButton3.Click += new System.EventHandler(this.LinkButton3_Click);
			this.LinkButton4.Click += new System.EventHandler(this.LinkButton4_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void DataList1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			
		}

		private void ImageButton1_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			Response.Redirect("search.aspx");
		}

		private void LinkButton1_Click(object sender, System.EventArgs e)
		{
			this.Label4.Text=Convert.ToString(Convert.ToInt32(this.Label4.Text)-1);
			this.bind();
		
		}

		private void LinkButton2_Click(object sender, System.EventArgs e)
		{
			this.Label4.Text=Convert.ToString(Convert.ToInt32(this.Label4.Text)+1);
			this.bind();
		}

		private void LinkButton4_Click(object sender, System.EventArgs e)
		{
			this.Label4.Text="1";
			this.bind();


		}

		private void LinkButton3_Click(object sender, System.EventArgs e)
		{
			this.Label4.Text=Session["page"].ToString();
			this.bind();
		}
	}
}