簡單的C＃WPF表單生成了看似無意義的錯誤消息

Question

下面的代碼包含“一堆”錯誤消息，我無法一生找出原因。 我最近不得不從VS2010“降級”到VS2008，此后除了痛苦之外什么都沒有。 前幾條錯誤消息在發生的位置旁邊顯示為注釋。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;

namespace UniClient_NextGen
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }

        private void buttonPopMenuItemsLU_Click(object sender, RoutedEventArgs e) 
        { // err msg #1 = "} expected"
            public static int TOPLEVEL_ID = 0;
            public static int PARENT_ID = 1;
            public static int SELF_ID = 2;
            public static int MENU_CAPTION = 3;
            public static int MENU_NAME = 4;

            string fileName = @"C:\_UniClientNextGen\MenuItemsWithIDs.txt";
            using (StreamReader reader = File.OpenText(fileName)) // err msg #2 = "Invalid token 'using' in class, struct, or interface member declaration" + err msg #3 = "; expected" (at end of this line)
            {
                string _line = null;
                string[] strElements;
                do
                {
                    _line = reader.ReadLine();
                    strElements = _line.Split(",");
                    // strElements should now have five elements
                    int iTopLevelID = Convert.ToInt32(strElements[TOPLEVEL_ID]);
                    int iParentID = Convert.ToInt32(strElements[PARENT_ID]);
                    int iOwnID = Convert.ToInt32(strElements[SELF_ID]);
                    string sMenuCaption = strElements[MENU_CAPTION];
                    string sMenuName = strElements[MENU_NAME];
                    //performSQL("INSERT INTO MENU_ITEMS_LOOKUP (TopLevelMenuID, ParentMenuID, MenuItemName, MenuItemCaption) VALUES (iTopLevelID, iParentID, iOwnID, sMenuCaption, sMenuName)");
                } while (_line != null);
            }
        } // err msg #4 = "Type or namespace definition, or end-of-file expected" 

        private void buttonPopSorterTypesLU_Click(object sender, RoutedEventArgs e)
        {
            //
        }

        private void buttonPopTabsheetsLU_Click(object sender, RoutedEventArgs e)
        {
            //
        }

        private void buttonPopMenuItem_SorterTypeM2M_Click(object sender, RoutedEventArgs e)
        {
            //
        }

        private void buttonPopSorterType_TabsheetM2M_Click(object sender, RoutedEventArgs e)
        {
            //
        }
    }
}

Answer 1

為什么在方法內部有public static聲明？

Answer 2

我認為您是XAML定義或XAML命名空間與您的類不同步。 您最近是否重命名了類或名稱空間？

Answer 3

這是更正后的代碼（我將靜態成員聲明移到正確的位置並更正了_line.Splt（）參數）：

//...
public static int TOPLEVEL_ID = 0;
public static int PARENT_ID = 1;
public static int SELF_ID = 2;
public static int MENU_CAPTION = 3;
public static int MENU_NAME = 4;

void buttonPopMenuItemsLU_Click(object sender, RoutedEventArgs e) {
    string fileName = @"C:\_UniClientNextGen\MenuItemsWithIDs.txt";
    using(StreamReader reader = File.OpenText(fileName)) {
        string _line = null;
        string[] strElements;
        do {
            _line = reader.ReadLine();
            strElements = _line.Split(',');
            int iTopLevelID = Convert.ToInt32(strElements[TOPLEVEL_ID]);
            int iParentID = Convert.ToInt32(strElements[PARENT_ID]);
            int iOwnID = Convert.ToInt32(strElements[SELF_ID]);
            string sMenuCaption = strElements[MENU_CAPTION];
            string sMenuName = strElements[MENU_NAME];
        } while(_line != null);
    }
}
//...