我对c＃和一般编程很新，并试图在Windows窗体中构建一种测验，其中问题，答案和选择存储在列表中，而问题，答案和选择都在不同的类中。 Windows窗体部分是四个按钮和一些文本框，可让您选择要选择的选项（1-4）。使用的所有列表都是字符串类型btw。 但每当我尝试启动程序时，我都被告知TypeInitializer引发了异常。 InnerException是索引超出范围。 HResult是-2146233036，如果有任何帮助，整个StackTrace是：
ved quizforreal.Display..ctor（） ved quizforreal.Program.Main（）i C：\ Users \ Anders \ documents \ visual studio 2015 \ Projects \ quizforreal \ quizforreal \ Program.cs：linje 19 ved System.AppDomain._nExecuteAssembly（RuntimeAssembly assembly，String [] args） ved System.AppDomain.ExecuteAssembly（String assemblyFile，Evidence assemblySecurity，String [] args） ved Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly（） ved System.Threading.ThreadHelper.ThreadStart_Context（Object state） ved System.Threading.ExecutionContext.RunInternal（ExecutionContext executionContext，ContextCallback callback，Object state，Boolean preserveSyncCtx） ved System.Threading.ExecutionContext.Run（ExecutionContext executionContext，ContextCallback callback，Object state，Boolean preserveSyncCtx） ved System.Threading.ExecutionContext.Run（ExecutionContext executionContext，ContextCallback回调，对象状态） ved System.Threading.ThreadHelper.ThreadStart（）
以下是代码：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace quizforreal
{
public partial class Display : Form
{
int tæller = 0;
private static Choices choiceobj = new Choices();
private static Questions questobj = new Questions();
private static Answers answerobj = new Answers();
List<string> choices1list = choiceobj.getChoiceOne();
List<string> choices2list = choiceobj.getChoiceTwo();
List<string> choices3list = choiceobj.getChoiceThree();
List<string> choices4list = choiceobj.getChoiceFour();
List<string> questlist = questobj.getQuestions();
List<string> answerlist = answerobj.getAnswers();
public Display()
{
InitializeComponent();
}
public void skifter()
{
switch (tæller)
{
case 0:
choice1.Text = choices1list[0];
choice2.Text = choices2list[0];
choice3.Text = choices3list[0];
choice4.Text = choices4list[0];
quest.Text = questlist[0];
break;
case 1:
choice1.Text = choices1list[1];
choice2.Text = choices2list[1];
choice3.Text = choices3list[1];
choice4.Text = choices4list[1];
quest.Text = questlist[1];
break;
case 2:
choice1.Text = choices1list[2];
choice2.Text = choices2list[2];
choice3.Text = choices3list[2];
choice4.Text = choices4list[2];
quest.Text = questlist[2];
break;
case 3:
choice1.Text = choices1list[3];
choice2.Text = choices2list[3];
choice3.Text = choices3list[3];
choice4.Text = choices4list[3];
quest.Text = questlist[3];
break;
case 4:
choice1.Text = choices1list[4];
choice2.Text = choices2list[4];
choice3.Text = choices3list[4];
choice4.Text = choices4list[4];
quest.Text = questlist[4];
break;
}
}
private void choice1_TextChanged(object sender, EventArgs e)
{
}
private void choice2_TextChanged(object sender, EventArgs e)
{
}
private void choice3_TextChanged(object sender, EventArgs e)
{
}
private void choice4_TextChanged(object sender, EventArgs e)
{
}
private void button1_Click(object sender, EventArgs e)
{
switch (tæller)
{
case 0:
if (choice1.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 1:
if (choice1.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 2:
if (choice1.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 3:
if (choice1.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 4:
if (choice1.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
}
}
private void button2_Click(object sender, EventArgs e)
{
switch (tæller)
{
case 0:
if (choice2.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 1:
if (choice2.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 2:
if (choice2.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 3:
if (choice2.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 4:
if (choice2.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
}
}
private void button3_Click(object sender, EventArgs e)
{
switch (tæller)
{
case 0:
if (choice3.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 1:
if (choice3.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 2:
if (choice3.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 3:
if (choice3.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 4:
if (choice3.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
}
}
private void button4_Click(object sender, EventArgs e)
{
switch (tæller)
{
case 0:
if (choice4.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 1:
if (choice4.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 2:
if (choice4.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 3:
if (choice4.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
case 4:
if (choice4.Text == answerlist[0])
{
tæller++;
}
else
{
tæller = 0;
}
break;
}
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace quizforreal
{
public class Choices
{
private List<string> choice1list = new List<string>();
private List<string> choice2list = new List<string>();
private List<string> choice3list = new List<string>();
private List<string> choice4list = new List<string>();
public Choices()
{
choice1list[0] = "mulighed1(1)";
choice1list[1] = "mulighed1(2)";
choice1list[2] = "mulighed1(3)";
choice1list[3] = "mulighed1(4)";
choice1list[4] = "mulighed1(5)";
choice2list[0] = "mulighed2(1)";
choice2list[1] = "mulighed2(2)";
choice2list[2] = "mulighed2(3)";
choice2list[3] = "mulighed2(4)";
choice2list[4] = "mulighed2(5)";
choice3list[0] = "mulighed3(1)";
choice3list[1] = "mulighed3(2)";
choice3list[2] = "mulighed3(3)";
choice3list[3] = "mulighed3(4)";
choice3list[4] = "mulighed3(5)";
choice4list[0] = "mulighed4(1)";
choice4list[1] = "mulighed4(2)";
choice4list[2] = "mulighed4(3)";
choice4list[3] = "mulighed4(4)";
choice4list[4] = "mulighed4(5)";
}
public List<string> getChoiceOne()
{
return choice1list;
}
public List<string> getChoiceTwo()
{
return choice2list;
}
public List<string> getChoiceThree()
{
return choice3list;
}
public List<string> getChoiceFour()
{
return choice4list;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace quizforreal
{
public class Questions
{
private List<string> questionslist = new List<string>();
public Questions()
{
questionslist[0] = "Spørgsmål 1";
questionslist[1] = "Spørgsmål 2";
questionslist[2] = "Spørgsmål 3";
questionslist[3] = "Spørgsmål 4";
questionslist[4] = "Spørgsmål 5";
}
public List<string> getQuestions()
{
return questionslist;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace quizforreal
{
class Answers
{
private static Choices choicesobj = new Choices();
List<string> choices1list = choicesobj.getChoiceOne();
List<string> choices2list = choicesobj.getChoiceTwo();
List<string> choices3list = choicesobj.getChoiceThree();
List<string> choices4list = choicesobj.getChoiceFour();
private List<string> answerlist = new List<string>();
public Answers()
{
answerlist[0] = choices1list[0];
answerlist[1] = choices3list[1];
answerlist[2] = choices4list[2];
answerlist[3] = choices1list[3];
answerlist[4] = choices2list[4];
}
public List<string> getAnswers()
{
return answerlist;
}
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace quizforreal
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Display());
}
}
}
希望你们能帮忙:)提前致谢！
答案 0 :(得分：0)
“TypeInitializer抛出异常”表示静态构造函数或字段初始值设定项中存在错误。您的表单类有一个静态字段private static Choices choiceobj = new Choices();查看Choices的构造函数，我看到您正在尝试使用索引器将项“添加”到列表中，如果列表将引发异常并不是那么大，所以你应该使用Add而不是索引器：
public class Choices
{
private List<string> choice1list = new List<string>();
...
public Choices()
{
choice1list.Add("mulighed1(1)");
choice1list.Add("mulighed1(2)");
...