stu_pas.aspx.cs

毕业设计关系b/s系统 毕业设计管理工作 毕业设计管理数据

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.Configuration ;
using System.Data .OleDb ;
using System.Data.SqlClient  ;

namespace graduate.stu
{
	/// <summary>
	/// stu_pas 的摘要说明。
	/// </summary>
	public class stu_pas : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.Button tj;
		string myConnString=ConfigurationSettings.AppSettings ["SQLconnectionString"];
		protected System.Web.UI.WebControls.TextBox txt_psw;
		protected System.Web.UI.WebControls.TextBox txt_psw1;
		string sql="";
		protected System.Web.UI.WebControls.Label lab_name;
		string studentid="";
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			tj.Attributes .Add ("onclick","return confirm_1();");
			Session["studentid"] = "10001";
			studentid=Convert.ToString (Session["studentid"]);
			
			if(!IsPostBack)
			{
				SqlConnection conn = new SqlConnection(myConnString);
				sql="select studentname  from BYSJ.studentbaseinfo where studentid='"+studentid+"'";
				try
				{
					conn.Open();
					SqlDataAdapter adapter1 = new  SqlDataAdapter(sql, conn);
					DataSet cla=new DataSet ();
					adapter1.Fill(cla);
					lab_name.Text =Convert.ToString (cla.Tables ["table"].Rows[0].ItemArray [0]);					
				}
				catch(SqlException ex)
				{
					Response.Write ("<script>");
					Response.Write ("alert('数据库连接出错！')");
					Response.Write ("</script>");
				}
				finally
				{
					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.tj.Click += new System.EventHandler(this.tj_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void tj_Click(object sender, System.EventArgs e)
		{
			string psw = txt_psw.Text .TrimEnd ();
			SqlConnection conn = new SqlConnection(myConnString);
			sql="update bysj.studentbaseinfo set password = '"+psw+"' where studentid='"+studentid+"'";
			SqlCommand cmd = new  SqlCommand (sql,conn);
				
			try
			{
				conn.Open();
				cmd.ExecuteNonQuery ();
					
				Response.Write ("<script>");
				Response.Write ("alert('密码修改成功！');");
				Response.Write("window.close();");
				Response.Write("</script>");
		
			}
			catch(SqlException ex)
			{
				Response.Write ("<script>");
				Response.Write ("alert('数据库连接出错！')");
				Response.Write ("</script>");
			}
			finally
			{
				conn.Close ();
			}
		}
	}
}