class_mimagenggai.aspx.cs

利用远程控制进行上课

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 free
{
	/// <summary>
	/// Summary description for class_mimagenggai.
	/// </summary>
	public class class_mimagenggai : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Label name;
		protected System.Web.UI.HtmlControls.HtmlTable jiaocheng;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.Button Button2;
		protected System.Web.UI.WebControls.TextBox TextBox3;
		protected System.Data.SqlClient.SqlConnection myconn;
		protected System.Web.UI.WebControls.Label tishi;
		protected System.Web.UI.WebControls.RegularExpressionValidator RegularExpressionValidator1;
		protected System.Data.SqlClient.SqlCommand mycomm;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			name.Text=Request.Cookies["free_xueyuan"].Value.ToString();
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button2_Click(object sender, System.EventArgs e)
		{
			Response.Redirect("class_study.aspx");
		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
			if(TextBox1.Text.Trim()=="")
			{
				tishi.Text="新密码不能为空!";
			}
			else if(TextBox2.Text.Trim()!=TextBox3.Text.Trim())
			{
				tishi.Text="新密码不一致!";
			}
			else if(Page.IsValid)
			{
				string sqlstr="SELECT  stu_password FROM class_student_information where stu_name='"+Request.Cookies["free_xueyuan"].Value.ToString()+"' ";
				myconn=new SqlConnection(Session["str_connection"].ToString());
				myconn.Open();
				//Try
				mycomm=new SqlCommand(sqlstr,myconn);
				SqlDataReader myread=mycomm.ExecuteReader();
				myread.Read();
				if(TextBox1.Text.Trim()==myread["stu_password"].ToString().Trim() )
				{
					myread.Close();
					mycomm=new SqlCommand("update class_student_information set stu_password='"+TextBox2.Text.Trim()+"' where stu_name='"+Request.Cookies["free_xueyuan"].Value.ToString()+"'",myconn);
					mycomm.ExecuteNonQuery();
					tishi.Text="密码修改成功!";
				}
				else
				{
					tishi.Text="旧密码错误!";
				}
				
				myconn.Close();
				
			}
			
		
		}
	}
}