Asp.net Filemode不是io的成员
我正在尝试使用下面的代码尝试关闭文件流,因为即使在服务器上仍在使用该文件流时,我仍会在处理该文件流后出错。所以我想可能会循环它,直到它关闭,因为它不会关闭后,一次尝试。无论如何,我得到的错误是FileMode、File Access、FileShare不是IO的成员Asp.net Filemode不是io的成员,asp.net,vb.net,.net,Asp.net,Vb.net,.net,我正在尝试使用下面的代码尝试关闭文件流,因为即使在服务器上仍在使用该文件流时,我仍会在处理该文件流后出错。所以我想可能会循环它,直到它关闭,因为它不会关闭后,一次尝试。无论如何,我得到的错误是FileMode、File Access、FileShare不是IO的成员 Dim thisFileInUse As Boolean = False Dim fs As System.IO.FileStream If System.IO.File.Exists(sFile) Then
Dim thisFileInUse As Boolean = False
Dim fs As System.IO.FileStream
If System.IO.File.Exists(sFile) Then
Try
fs = System.IO.File.Open(sFile, io.FileMode.Open, io.FileAccess.Write, io.FileShare.ReadWrite)
fs.Close()
fs.Dispose()
Catch
Try
fs.Close()
fs.Dispose()
Catch
End Try
thisFileInUse = True
End Try
End If
Return thisFileInUse
试试这个:
Imports System.IO
Dim thisFileInUse As Boolean = False
Dim fs As FileStream
If File.Exists(sFile) Then
Try
fs = File.Open(sFile, FileMode.Open, FileAccess.Write, FileShare.ReadWrite)
...
System.IO
是命名空间名称,如果导入它,可以避免反复键入。最后使用和正确的命名空间System.IO
:
Imports System.IO
' ....
Public Shared Function IsFileInUse(sFile As String) As Boolean
Dim stream As FileStream = Nothing
Dim isInUse As Boolean = False
Try
stream = File.Open(sFile, FileMode.Open, FileAccess.ReadWrite, FileShare.None)
Catch generatedExceptionName As IOException
isInUse = True
Finally
If stream IsNot Nothing Then
stream.Close()
End If
End Try
Return isInUse
End Function