flowMeter/NGToolsPC/frmJdygl.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace NGToolsPC
{
    public partial class frmJdygl : Form
    {
        public frmJdygl()
        {
            MySqlCon = new System.Data.OleDb.OleDbConnection(mldPublic.strConCNG);
            InitializeComponent();
        }

        private void frmJdygl_Load(object sender, EventArgs e)
        {
            string strSQL = "";

            if (mldPublic.strJdyXm == "") { return; }

            if (mldPublic.strJdyXm == "admin")
            {
                strSQL = "select ID,检定员,密码 from 用户管理 order by ID";
                dataGridView1.AllowUserToAddRows = true;
            }
            else
            {
                strSQL = "select ID,检定员,密码 from 用户管理 where 检定员='" + mldPublic.strJdyXm + "' order by ID";
                Button1.Enabled = false;
                Button3.Enabled = false;
                dataGridView1.AllowUserToAddRows = false;
            }

            try
            {
                dtJdy = new DataTable();
                JdyDap = new System.Data.OleDb.OleDbDataAdapter();
                JdyDap.SelectCommand = new OleDbCommand(strSQL, MySqlCon);

                JdyDap.Fill(dtJdy);


                this.dataGridView1.DataSource = dtJdy;
                this.dataGridView1.Columns[0].Visible = false;
                this.dataGridView1.Columns[2].Visible = false;
                Jdycb = new OleDbCommandBuilder(JdyDap);
                JdyDap.UpdateCommand = Jdycb.GetUpdateCommand();
                JdyDap.InsertCommand = Jdycb.GetInsertCommand();
                JdyDap.DeleteCommand = Jdycb.GetDeleteCommand();
            }
            catch (Exception ex)
            {
                //string aaa = ex.Message;
            }
        }

        public System.Data.OleDb.OleDbConnection MySqlCon; // VBConversions Note: Initial value cannot be assigned here since it is non-static.  Assignment has been moved to the class constructors.
        DataTable dtJdy;

        OleDbCommandBuilder Jdycb;
        System.Data.OleDb.OleDbDataAdapter JdyDap;
        int strJdyCheck;
        string strJdyName;



        private void dataGridView1_Click(object sender, EventArgs e)
        {
            if (dataGridView1.SelectedRows.Count == 0)
            {
                return;
            }
            int intJdyID = 0;
            try
            {
                intJdyID = System.Convert.ToInt32(dataGridView1.SelectedRows[0].Cells[0].Value.ToString());
                strJdyName = (dataGridView1.SelectedRows[0].Cells[1].Value.ToString());




                if (intJdyID == 0)
                {
                    return;
                }
                strJdyCheck = intJdyID;

            }
            catch (Exception)
            {


            }
        }

        private void Button1_Click(object sender, EventArgs e)
        {
            JdyDap.Update(dtJdy);
            dtJdy.Clear();
            JdyDap.Fill(dtJdy);
        }

        private void Button3_Click(object sender, EventArgs e)
        {
            //消息框中需要显示哪些按钮，此处显示“确定”和“取消”

            string yhxm = dataGridView1.SelectedRows[0].Cells[1].Value.ToString();
            if (yhxm == "admin")
            {
                return;
            }

            MessageBoxButtons messButton = MessageBoxButtons.OKCancel;

            //"确定要退出吗？"是对话框的显示信息，"退出系统"是对话框的标题

            //默认情况下，如MessageBox.Show("确定要退出吗？")只显示一个“确定”按钮。
            DialogResult dr = MessageBox.Show("确定要删除吗?", "删除检定员", messButton);

            if (dr == DialogResult.OK)//如果点击“确定”按钮

            {

                dataGridView1.Rows.Remove(dataGridView1.SelectedRows[0]);

            }

            JdyDap.Update(dtJdy);
            dtJdy.Clear();
            JdyDap.Fill(dtJdy);
        }

        private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (strJdyCheck == 0)
            {
                MessageBox.Show("请先选择用户！");
                dataGridView1.Focus();
                return;
            }

            DataRow[] dr = dtJdy.Select("ID=" + strJdyCheck);
            string oldPsw = dr[0]["密码"].ToString();

            if (oldPsw == textBox1.Text)
            {
                if (textBox2.Text == textBox3.Text)
                {
                    dr[0]["密码"] = textBox3.Text;
                    JdyDap.Update(dtJdy);
                    dtJdy.Clear();
                    JdyDap.Fill(dtJdy);
                    MessageBox.Show("修改成功，请记好密码！");
                    textBox1.Focus();
                    return;
                }
                else
                {
                    MessageBox.Show("新密码和确认密码不对，请重新输入！");
                    textBox2.Focus();
                    return;
                }
            }
            else
            {
                MessageBox.Show("旧密码不对，请重新输入！");
                textBox1.Focus();
                return;
            }
        }
    }
}