admin/Up_Admin_Pwd.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using ClassLibrary2;
using System.Data.SqlClient;
using System.Data;

public partial class admin_Up_Admin_Pwd : System.Web.UI.Page
{
    string str = System.Configuration.ConfigurationManager.AppSettings["str_con"].ToString(); //连接数据库
    SqlConnection con = null;
    SqlCommand cmd = null;
    protected void Page_Load(object sender, EventArgs e)
    {
        L_admin.Text = Value.adminyhm.ToString();
    }
    protected void Button1_Click(object sender, EventArgs e)
    { 
        string 密码 = text_oldpwd.Text.Trim();
        string 新密码 = text_newpwd.Text.Trim();
        string 确认密码 = text_okpwd.Text.Trim();
        con = new SqlConnection(str);
        con.Open();
        string oldpwd = "SELECT userPwd FROM [dbo].[管理员信息表] where adminUser = '" + Value.adminyhm.Trim() + "'and userPwd = '" + text_oldpwd.Text.Trim() + "'";
        cmd = new SqlCommand(oldpwd, con);
        SqlDataReader dr = cmd.ExecuteReader();
        if (dr.Read())
        {
            string old = dr.GetString(0).Trim(); //dr["password"].ToString();
            if (old == text_oldpwd.Text.Trim())
            {
                if (text_newpwd.Text.Trim() != text_okpwd.Text.Trim())
                {
                    Response.Write("<script>alert('两次输入密码不同！')</script>");
                    text_newpwd.Text = "";
                    text_okpwd.Text = "";
                    text_newpwd.Focus();
                    return;
                }
                else
                {
                    dr.Close();
                    string str_uppwd = "UPDATE [dbo].[管理员信息表] SET userPwd ='" + text_okpwd.Text.Trim() + "' WHERE adminUser = '" + Value.adminyhm.Trim() + "'";
                    SqlCommand cmd1 = new SqlCommand(str_uppwd, con);
                    cmd1.ExecuteNonQuery();
                    con.Close();
                    Response.Write("<script>alert('修改成功');</script");//window.location='startPage.aspx';
                }
            }

        }
        else
        {
            Response.Write("<script>alert('旧密码不正确，请重新输入！')</script");
            return;
        }
    }