admin/system/pass.aspx.cs

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using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using System.Data.SqlClient;
using System.Data;

public partial class pass : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
  
    }

    /// <summary>
    /// 修改密码
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    protected void btnSave_Click(object sender, EventArgs e)
    {     
               //判断两次密码输入是否一致，如果不一致，则弹出提示信息，并返回
        if (TextBox1.Text == TextBox2.Text)
        {
            //根据会员编号和原密码得到会员信息
            SqlDataReader sdr = SqlHelper.ExecuteReader("select * from admin where aid=" + Session["UserNo"].ToString() + " and pwd='" + txt_pwd.Text + "'");

            //判断原密码是否正确
            if (sdr.Read())
            {
                //更新新密码
                SqlHelper.ExecuteNonQuery("update admin set pwd='" + TextBox1.Text + "' where aid=" + Session["UserNo"].ToString());
                Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "<script>alert('修改成功！');</script>");

            }
            else
            {
                Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "<script>alert('原密码不正确！');</script>");
            }
            sdr.Close();
        }
        else
        {
            Page.ClientScript.RegisterStartupScript(this.GetType(), "alert", "<script>alert('两次密码输入不一致！');</script>");
        }

    }

}