modifypwd.aspx.cs

电子通讯录系统

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class ModifyPwd : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (this.Session["userID"] == null)
        {
            Response.Redirect("Login.aspx");
        }
    }
    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        SqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["DBConnectionString"]);
        SqlCommand selectCmd = new SqlCommand("select * from Users where userId='" + Session["userID"].ToString() + "' and userPwd='" + txtOldPwd.Text.Trim() + "'", conn);
        try
        {
            conn.Open();
            SqlDataReader sdr = selectCmd.ExecuteReader();
            if (sdr.Read())
            {
                sdr.Close();
                SqlCommand updateCmd = new SqlCommand("update  Users set userPwd='" + txtNewPwd.Text.Trim() + "' where userId='" + Session["userID"].ToString() + "'", conn);
                int i = updateCmd.ExecuteNonQuery();
                if (i > 0)
                {
                    Response.Write("<script language=javascript>alert('成功修改密码！')</script>");
                }
                else
                {
                    Response.Write("<script language=javascript>alert('修改密码失败！')</script>");
                }
            }
            else
            {
                Response.Write("<script language=javascript>alert('您输入的密码错误，检查后重新输入！')</script>");
            }
        }
        catch (System.Exception ee)
        {
            Response.Write("<script language=javascript>alert('" + ee.Message.ToString() + "')</script>");
        }
        finally
        {
            conn.Close();
        }
    }
    protected void btnReset_Click(object sender, EventArgs e)
    {
        txtOldPwd.Text = "";
        txtNewPwd.Text = "";
        txtConfirmPwd.Text = "";
    }
    protected void btnBack_Click(object sender, EventArgs e)
    {
        Response.Redirect("AddressList.aspx");
    }
}