简单的C＃WPF表单生成了看似无意义的错误消息

Question

下面的代码包含“一堆”错误消息，我无法一生找出原因。 我最近不得不从VS2010“降级”到VS2008，此后除了痛苦之外什么都没有。 前几条错误消息在发生的位置旁边显示为注释。

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

为什么在方法内部有public static声明？

Answer 2

我认为您是XAML定义或XAML命名空间与您的类不同步。 您最近是否重命名了类或名称空间？

Answer 3

这是更正后的代码（我将静态成员声明移到正确的位置并更正了_line.Splt（）参数）：

//...
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);
    }
}
//...