deltalk.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>
	/// deltalk 的摘要说明。
	/// </summary>
	public class deltalk : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.ImageButton ImageButton1;
	
		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["gl"]=="1")
			{
				if(!this.IsPostBack)
				{

					this.bind();
					Session["bin"]="0";
				}
			}
			else
			{
				Response.Write("<script language=javascript>alert('您没有管理权限！');location='index.htm' </script>");
			}
	
		}
		public void bind()
		{
			string str="select * from talks";
			SqlConnection con=db.createcon();
			con.Open();
			SqlDataAdapter sdr=new SqlDataAdapter();
			sdr.SelectCommand=new SqlCommand(str,con);
			DataSet ds=new DataSet();
			sdr.Fill(ds);
			this.DataGrid1.DataSource=ds;
			this.DataGrid1.DataBind();
			this.Label3.Text="当前位置：评论管理";

		}
	/*	public void jia()
		{
			SqlConnection con=db.createcon();
			con.Open();
			//string id=Session["vid"].ToString();
			SqlCommand cm=new SqlCommand("select talk from mess where id='"+id+"' ",con);
			SqlDataReader sdr=cm.ExecuteReader();
			sdr.Read();
			int a=Convert.ToInt32(sdr["talk"].ToString());
			a++;
			con.Close();
			SqlConnection cn=db.createcon();
			cn.Open();
			SqlCommand cmm=new SqlCommand("update mess set talk='"+a+"' where id='"+id+"'",cn);
			cmm.ExecuteNonQuery();
			cn.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.ImageButton1.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton1_Click);
			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.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void DataGrid1_DeleteCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
		{
			int a=int.Parse(e.Item.Cells[0].Text);
			string nam=e.Item.Cells[1].Text.Trim();
			string str="delete from talks where id='"+a+"'";
			SqlConnection cn=db.createcon();
            cn.Open();
			SqlCommand cmm=new SqlCommand(str,cn);
			cmm.ExecuteNonQuery();
			cn.Close();
			Response.Write("<script language=javascript>alert('删除成功')</script>");
			string str1="update mess set ";
			this.bind();

			/*SqlConnection con=db.createcon();
			con.Open();
			//string id=Session["vid"].ToString();
			SqlCommand cm=new SqlCommand("select talk from mess where name='"+nam+"' ",con);
			SqlDataReader sdr=cm.ExecuteReader();
			sdr.Read();
			int a=Convert.ToInt32(sdr["talk"].ToString());
			a--;
			con.Close();
			SqlConnection cn=db.createcon();
			cn.Open();
			SqlCommand cmm=new SqlCommand("update mess set talk='"+a+"' where name='"+nam+"'",cn);
			cmm.ExecuteNonQuery();
			cn.Close();*/

		 // Response.Write(nam);
		}

		private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
		  this.DataGrid1.CurrentPageIndex=e.NewPageIndex;
			if(Session["bin"]=="1")
			{
				this.bin();
			}
			else
			{

				this.bind();
			}
		}

		private void ImageButton1_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
		this.bin();
		Session["bin"]="1";
		}
		public void bin()
		{
			//string vl="name";
			string str1="select * from talks where vname like '%"+this.TextBox1.Text+"%'";
			string str2="select * from talks where autor like '%"+this.TextBox1.Text+"%'";
			SqlConnection conn=db.createcon();
			SqlDataAdapter sda1=new SqlDataAdapter();
			conn.Open();
			if(this.DropDownList1.SelectedItem.Value=="用户名")
			{
				str1=str2;
				//vl="主要演员";
				//sda.SelectCommand=new SqlCommand(str1,con);
			}
			//else
			
			sda1.SelectCommand=new SqlCommand(str1,conn);			
			DataSet ds=new DataSet();
			sda1.Fill(ds);
			this.DataGrid1.DataSource=ds;
			this.DataGrid1.DataBind();
			conn.Close();
			this.Label2.Text="查询结果共计"+ds.Tables[0].Rows.Count.ToString()+"个";
			/*string str1="select count(*) from mess where name like '%"+this.TextBox1.Text+"%'";
			string str2="select count(*) from mess where 主要演员 like '%"+this.TextBox1.Text+"%'";
			SqlConnection con=db.createcon();
			SqlDataReader sdr=*/

			
		
			

		}

	}
}