使用streamReader读取文件时出错

问题描述

我正在读取放在目录中某个位置的文件，如果我得到类似连接重置或异常的内容，我将整行保存在接下来的3行。

I''m reading a file placed in somewhere in the directory, If I get something like "Connection reset" or "Exception" I''m storing that entire line with next 3 lines.

Function SearchException(ByVal filePath As String, ByVal fileName As String)
      Dim strTextFile As StreamReader
      Dim rowLength As Integer = 0
      Dim eachLine As String
      Dim strFilePath = filePath & "\" & fileName
      Dim flagChk As Boolean

      strTextFile = File.OpenText(filePath & "\" & fileName)
      txtVewLogDetail.Text = strTextFile.ReadToEnd

      ''TextBox1.Text = fileName.Remove(10)

      Dim strStartupLine As String
      strStartupLine = getStartupDate(fileName.Remove(10))

      Dim r As StreamReader = New StreamReader(strFilePath)
      Dim aryShowString() As String
      Dim intLine As Integer = 0
      'rowLength = File.ReadAllLines(strFilePath).Length

      While (r.ReadLine() IsNot Nothing)
          rowLength = rowLength + 1
          eachLine = r.ReadLine()
          If (eachLine.Contains("Connection reset")) Then
              aryShowString(0) = eachLine.ToString()
              intLine = intLine + 1
              MsgBox("Exception Found at Row = " & rowLength)
              'flagChk = True
          End If
      End While
END SUB

这里aryShowString是一个数组，当我试图存储每个字符串本身的内容时，它不起作用。



请帮帮我...

Here aryShowString is an array, when I''m trying to store the content of eachLine which is a string itself, is not working.

Please Help me on this...

推荐答案

Dim r As StreamReader = New StreamReader(strFilePath)
Dim lines As New List(Of String)()
Dim intLine As Integer = 0
'rowLength = File.ReadAllLines(strFilePath).Length

While (r.ReadLine() IsNot Nothing)
    rowLength = rowLength + 1
    eachLine = r.ReadLine()
    If (eachLine.Contains("Connection reset")) Then
        lines.Add(eachLine)
        intLine = intLine + 1
        MsgBox("Exception Found at Row = " & rowLength)
        'flagChk = True
    End If
End While

如果你真的需要列表最后作为数组，你可以使用ToArray方法。

If you really need the list as an array at the end, you can use the ToArray method.

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