using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Data.SqlClient;

namespace WindowsFormsApplication1

{

    public partial class xgmm : Form

    {

        string username = login.uname;//获得到当前用户名

        string connectionString;

      //  SqlConnection conn; 

        public xgmm()

        {

            InitializeComponent();

            //禁止最大化

            this.MaximizeBox = false;

            ymmtextbox_xgmm.PasswordChar = '*';

            xmmtextBox_xgmm.PasswordChar = '*';

            zsrxmmtextBox_xgmm.PasswordChar = '*';

            zsrxmmtextBox_xgmm.PasswordChar = '*';

          

            connectionString = Properties.Settings.Default.SSGLConnectionString;

        }







       //??????????????



        //问题  输入原先密码不正确怎么办

        private void qdbutton_xgmm_Click(object sender, EventArgs e)

        {

          //  string passwd = "123456";  

            using (SqlConnection conn = new SqlConnection(connectionString))

            {

              try

                {

                  conn.Open();

                }

              catch 

               {

                  MessageBox.Show("数据库连接失败!");

               }

                //输入的密码合法性判断

            if (ymmtextbox_xgmm.Text == "" || xmmtextBox_xgmm.Text == "" || zsrxmmtextBox_xgmm.Text == "")

 &n