C# 未处理数组帮助索引超出范围异常
我试图用逗号作为分隔符从文本文件填充组合框，一切正常，但现在当我调试时，出现“索引超出范围异常未处理”警告。我想我需要一双新的眼睛来看看哪里出了问题，我在获取错误的那一行上发表了评论//Fname=fields[1]C# 未处理数组帮助索引超出范围异常,c#,C#,我试图用逗号作为分隔符从文本文件填充组合框，一切正常，但现在当我调试时，出现“索引超出范围异常未处理”警告。我想我需要一双新的眼睛来看看哪里出了问题，我在获取错误的那一行上发表了评论//Fname=fields[1] private void xViewFacultyMenuItem_Click(object sender, EventArgs e) { const string fileStaff = "source\\Staff.txt"; c
private void xViewFacultyMenuItem_Click(object sender, EventArgs e)
{
const string fileStaff = "source\\Staff.txt";
const char DELIM = ',';
string Lname, Fname, Depart, Stat, Sex, Salary, cDept, cStat, cSex;
double Gtotal;
string recordIn;
string[] fields;
cDept = this.xDeptComboBox.SelectedItem.ToString();
cStat = this.xStatusComboBox.SelectedItem.ToString();
cSex = this.xSexComboBox.SelectedItem.ToString();
FileStream inFile = new FileStream(fileStaff, FileMode.Open, FileAccess.Read);
StreamReader reader = new StreamReader(inFile);
recordIn = reader.ReadLine();
while (recordIn != null)
{
fields = recordIn.Split(DELIM);
Lname = fields[0];
Fname = fields[1]; // this is where the error appears
Depart = fields[2];
Stat = fields[3];
Sex = fields[4];
Salary = fields[5];
Fname = fields[1].TrimStart(null);
Depart = fields[2].TrimStart(null);
Stat = fields[3].TrimStart(null);
Sex = fields[4].TrimStart(null);
Salary = fields[5].TrimStart(null);
Gtotal = double.Parse(Salary);
if (Depart == cDept && cStat == Stat && cSex == Sex)
{
this.xEmployeeListBox.Items.Add(recordIn);
}
recordIn = reader.ReadLine();
}
Source file --
Anderson, Kristen, Accounting, Assistant, Female, 43155
Ball, Robin, Accounting, Instructor, Female, 42723
Chin, Roger, Accounting, Full, Male,59281
Coats, William, Accounting, Assistant, Male, 45371
Doepke, Cheryl, Accounting, Full, Female, 52105
Downs, Clifton, Accounting, Associate, Male, 46887
Garafano, Karen, Finance, Associate, Female, 49000
Hill, Trevor, Management, Instructor, Male, 38590
Jackson, Carole, Accounting, Instructor, Female, 38781
Jacobson, Andrew, Management, Full, Male, 56281
Lewis, Karl, Management, Associate, Male, 48387
Mack, Kevin, Management, Assistant, Male, 45000
McKaye, Susan, Management, Instructor, Female, 43979
Nelsen, Beth, Finance, Full, Female, 52339
Nelson, Dale, Accounting, Full, Male, 54578
Palermo, Sheryl, Accounting, Associate, Female, 45617
Rais, Mary, Finance, Instructor, Female, 27000
Scheib, Earl, Management, Instructor, Male, 37389
Smith, Tom, Finance, Full, Male, 57167
Smythe, Janice, Management, Associate, Female, 46887
True, David, Accounting, Full, Male, 53181
Young, Jeff, Management, Assistant, Male, 43513
为了不想看到你发布的庞大代码的人，这里有相关的一点：
while (recordIn != null)
{
fields = recordIn.Split(DELIM);
Lname = fields[0];
Fname = fields[1]; // this is where the error appears
recordInDELIMusing System;
using System.IO;
class Test
{
static void Main()
{
string[] lines = File.ReadAllLines("source\\Staff.txt");
for (int i = 0; i < lines.Length; i++)
{
string line = lines[i];
string[] fields = line.Split(',');
if (fields.Length != 6)
{
Console.WriteLine("Invalid line ({0}): '{1}'",
i + 1, line);
}
}
}
}
使用系统；
使用System.IO；
课堂测试
{
静态void Main（）
{
string[]lines=File.ReadAllLines（“source\\Staff.txt”）；
对于（int i=0；ifields = recordIn.Split(DELIM);
if (fields.length < 6)
{
// the current recordIn is the problem!
}
else
{
Lname = fields[0];
// etc.
}
recordIn = reader.ReadLine(); // make sure to put this after the else block!
if（fields.length<6）
{
//当前记录就是问题所在！
}
其他的
{
Lname=字段[0]；
//等等。
}
recordIn=reader.ReadLine（）；//一定要把这个放在else块后面！
在读取文件时，您应该经常这样做，因为通常会有前导或尾随的空行。这么长的代码。至少给出一些callstack当您尝试访问“字段[1]”时，是否可以在调试器中运行它并查看“字段”是什么？通过在拆分后插入
Debug.Assert（fields.Length==6）