private void ESC_Click(object sender, RoutedEventArgs e)
        {

            Window_calculate04 MianJiJiSuan = new Window_calculate04();
            MianJiJiSuan.Show();
            this.Close();//关闭当前窗口
        }
 private void MJzhouchang_Click(object sender, RoutedEventArgs e)
 {
     Window_calculate04 window_calculate04 = new Window_calculate04();
     window_calculate04.Show();
     this.Close();//关闭当前窗口
 }
        private void Bt_enter_Click(object sender, RoutedEventArgs e)
        {
            if (LV.SelectedIndex != -1)
            {
                OleDbConnection conn = new OleDbConnection(odbcConnStr);
                conn.Open();
                string sql = "select ID,D_NAME,D_TYPE,N,E,Z from Original_data";
                OleDbDataAdapter adp = new OleDbDataAdapter(sql, conn);
                DataSet ds = new DataSet();
                adp.Fill(ds, "Original_data");  
                int c = LV.SelectedIndex;
                int id = (int) ds.Tables["Original_data"].Rows[c]["ID"];


                //读取数据库
                sql = "select ID,D_NAME,D_TYPE,N,E,Z from Original_data where ID = " + id;
                OleDbDataAdapter adp_new = new OleDbDataAdapter(sql, conn);
                DataTable ds_new = new DataTable();
                adp_new.Fill(ds_new);//将数据源加载到dataset中

                Window_calculate04 MianJiJiSuan = new Window_calculate04();

                MianJiJiSuan.LV.ItemsSource = ds_new.DefaultView;
                conn.Close();

                MianJiJiSuan.Show();
                this.Close();//关闭当前窗口
            }
            else
            {
                MessageBox.Show("请选择数据!", "提示");
            }
        }