kc_modify2.aspx.cs

本文介绍了在Visual Studio.net环境下开发一个教材库管理系统的过程。创建了一套行之有效的方案。文章介绍了管理系统的系统分析部分

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 jiaocaiku.admin
{
	/// <summary>
	/// kc_modify2 的摘要说明。
	/// </summary>
	public class kc_modify2 : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox t1;
		protected System.Web.UI.WebControls.TextBox t2;
		protected System.Web.UI.WebControls.TextBox t3;
		protected System.Web.UI.WebControls.ImageButton ImageButton1;
		protected System.Web.UI.WebControls.ImageButton ImageButton2;
		protected System.Web.UI.WebControls.Panel Panel1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{


			if(!Page.IsPostBack)
			{
				if(Session["adminname"]==null)
				{
					Response.Redirect("login.aspx");

				}

			}

			if(!IsPostBack)
			{
				newsview();

			}
		}


		private void newsview()
		{
			int strid=Convert.ToInt32(Request.QueryString["id"].ToString());
			SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["connstr"].ToString());
			conn.Open();
			string strsql="select * from kc where id="+strid;
			SqlCommand cmd=new SqlCommand(strsql,conn);
			SqlDataReader dr=cmd.ExecuteReader();
			if (dr.Read())
			{
				t1.Text=dr["kcname"].ToString();
				t2.Text=dr["class"].ToString();
				t3.Text=dr["nianji"].ToString();
				


			}

			dr.Close();
			conn.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.ImageButton2.Click += new System.Web.UI.ImageClickEventHandler(this.ImageButton2_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void ImageButton1_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			int strid=Convert.ToInt32(Request.QueryString["id"].ToString());
			SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["connstr"].ToString());
			conn.Open();
			string strsql="update kc set kcname='"+t1.Text.ToString()+"',class='"+t2.Text.ToString()+"',nianji='"+t3.Text.ToString()+"' where id="+strid;
			SqlCommand cmd=new SqlCommand(strsql,conn);
			cmd.ExecuteNonQuery();

			Response.Write("<script>alert('修改成功！');</script>");

		}

		private void ImageButton2_Click(object sender, System.Web.UI.ImageClickEventArgs e)
		{
			Response.Write("<script>window.location.href='kc_modify.aspx';</script>");

		}
	}
}