Vb.net 在Visual Basic中选择列表框项时切换CVS文本文件项时出错
当在列表框中选择姓氏时,我尝试将“m”切换为“先生”,将“F”切换为“女士”。当我点击第一个名字时,它工作了,但当我点击任何其他名字时,我得到了以下错误消息: --附加信息:索引超出了数组的边界-- 文本文件中的信息如下所示:Vb.net 在Visual Basic中选择列表框项时切换CVS文本文件项时出错,vb.net,text,csv,if-statement,listbox,Vb.net,Text,Csv,If Statement,Listbox,当在列表框中选择姓氏时,我尝试将“m”切换为“先生”,将“F”切换为“女士”。当我点击第一个名字时,它工作了,但当我点击任何其他名字时,我得到了以下错误消息: --附加信息:索引超出了数组的边界-- 文本文件中的信息如下所示: Ball,Krystal,F,1981 Banks,Robin,F,1988 Burgher,Hamilton,M,1980 Early,Brighton,M,1989 Hedd,MT,M,1960
Ball,Krystal,F,1981
Banks,Robin,F,1988
Burgher,Hamilton,M,1980
Early,Brighton,M,1989
Hedd,MT,M,1960
Hogg,Ima,F,1953
Knapp,Anita,F,1970
Overnout,Roger,M,1968
Psito,Arnie,M,1962
Teak,Anne,F,1939
我的代码如下:
Private Sub btnEnter_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnter.Click
Dim names As IO.StreamReader = IO.File.OpenText("Info.txt")
Dim lName As String = lstNames.Text
Dim line As String
Dim gender As String
Dim foundFlag As Boolean = False
Do Until foundFlag Or names.EndOfStream
line = names.ReadLine
If line.Split(","c)(2) = "M" Then
gender = "Mr. "
ElseIf line.Split(","c)(2) = "F" Then
gender = "Ms. "
End If
If line.Split(","c)(0) = lName Then
txtOutput.Text = gender & line.Split(","c)(1) & " " & line.Split(","c)(0) & " is " & 2012 - line.Split(","c)(3)
foundFlag = True
End If
Loop
End Sub
有人能告诉我怎么了吗。提前感谢。我完全按照您的要求重新创建了您的应用程序,它工作正常 这让我相信有两件事正在发生:
Info.txt
文件中有错误字符Info.txt
中相同的名称填充lstNames
组合框 Dim line() As String
Dim gender As String
Dim foundFlag As Boolean = False
Do Until foundFlag Or names.EndOfStream
line = names.ReadLine.Split(","c)
If line(0) = lName Then
If line(2) = "M" Then
gender = "Mr. "
ElseIf line(2) = "F" Then
gender = "Ms. "
End If
txtOutput.Text = gender & line(1) & " " & line(0) & " is " & 2012 - cint(line(3))
foundFlag = True
End If
Loop
错误消息中的行号是否与正在显示的代码的行号匹配?没有,似乎所有内容都是正确的。我不知道当我选择第一个名字“Ball”时它会起作用,但它会在其他名字上抛出错误,
lstNames
是一个组合框,其中包含Ball
,Banks
,Burgher
,Early
。。。您是如何填充组合框的?我刚刚用我在文本文件内容上键入的最后一个名称填充了集合中的列表框OK,它现在可以工作了。谢谢