System.TypeInitializationException未被处理

Question

当MS Visual 2005抛出此消息时，意味着什么？

"The type initializer for 'RMDC.clsVariables' threw an exception."

错误日志如下所示：

System.TypeInitializationException was unhandled
  Message="The type initializer for 'RMDC.clsVariables' threw an exception."
  Source="RMDC"
  TypeName="RMDC.clsVariables"
  StackTrace:
       at RMDC.clsFunctions.getRegistryValue() in D:\Magnus Project\Project Backup\RMDC\RMDC\Class\clsFunctions.cs:line 704
       at RMDC.Program.Main() in ..\RMDC\RMDC\Program.cs:line 39
       at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()

问题中有错误的类

using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using System.Data;
using System.Windows.Forms;
using System.Collections;


namespace RMDC
{
    class clsVariables
    {
        public SqlConnection conn = new SqlConnection();

        public SqlDataAdapter sAdapter = new SqlDataAdapter();
        public DataSet sDataSet = new DataSet();

        public static string sMessageBox = "";
        public static string sUsername;
        public static string sUserFullname;
        public static string sUserLogin;
        public static string sUserType;
        public static int sUserID;
        public static string sServer = "system-10";
        public static string sDatabase = "";
        public static string sDBUserID = "";
        public static string sDBPassword = "";
        public static bool sDontShow = false;
        public static string sCompanyName;
        public static string sContactName;
        public static string sCompanyAddress;
        public static string sPhoneNumber;
        public static string sFaxNumber;
        public static string sEmailAddress;
        public static string sWebAddress;
        public static string sOfficeCd = "01";
        public static int sfiscalYrId = 1;
        public static string sfiscalYr;
        public static DateTime sFiscalStart = DateTime.Today;
        public static DateTime sFiscalEnd = DateTime.Today;
        public static int sRoleId;

        public static byte[] m_barrImg;

        public static SqlConnection cnn = new SqlConnection();

        public OpenFileDialog openIMG = new OpenFileDialog();

        public static NepEngCalanderProvider.NepEngDateClass nepDate = new NepEngCalanderProvider.NepEngDateClass();
        public static NumberToWord.InWordsClass NumericWords = new NumberToWord.InWordsClass();


        public enum QueryType
        {
            Insert,
            Update,
            Delete
        }
    }
}

Answer 1

嗯，它的意思是它所说的-在类型初始化RMDC.clsVariables (这是一个非常规的名称，顺便说一句)的东西爆炸了。

这可能是一个静态变量初始化器：

static int foo = GetInitialValueForFoo();

或静态构造函数：

static clsVariables
{
    DoSomething();
}

不管它是什么，它都失败了，让你的类型无法使用。

如果在调试器中运行代码，那么一旦抛出异常，它就会破门而入，这样就可以更容易地计算出正在发生的事情。

Answer 2

您必须查看异常的InnerException，才能找到引发TypeInitializationException的原因。没有这些信息是不可能猜测出什么问题的。

任何代码生成的错误日志都需要一些工作，这样它就不会忘记显示内部异常。如果使用Exception.ToString()方法，这是自动的。如果需要，为AppDomain.CurrentDomain.UnhandledException实现一个事件处理程序，记录e.ExceptionObject.ToString()的值。