Check for ReadOnly File is in Use

[Mayur H Chauhan]

All,
I am working on one product where we need to check for physical file
is in use (if it is open by other application). What I found out is that I
am able to trap for those files whose attribute is not Set as ReadOnly. I
have done this by opening file using FileStream Object opening in Edit mode
with No Shared. But if I am try to apply same logic for ReadOnly files, then
it throws NonAuthorized exception. This exception is also raised even when I
try to open this file even if this is not in use by other application.

Any suggestion would be helpful

Thanks
Mayur Chauhan

[J T]

Here is the code : you can check FileAttribute

Imports System.IO

Dim Filepath as string = "c:\\myFile.txt "

If (File.GetAttrib utes(Filepath)) Then
If (FileAttributes .ReadOnly = FileAttributes. ReadOnly) Then
MsgBox("File is read only")
End If
End If

[=?Utf-8?B?SlQ=?=]

Here is the code : You can use FileAttributes to do this

Imports System.IO
Dim Filepath as string = "c:\\myFile.txt "
If (File.GetAttrib utes(Filepath)) Then
If (FileAttributes .ReadOnly = FileAttributes. ReadOnly) Then
MsgBox("File is readd only")
End If
End If

"Mayur H Chauhan" wrote:

All,
I am working on one product where we need to check for physical file
is in use (if it is open by other application). What I found out is that I
am able to trap for those files whose attribute is not Set as ReadOnly. I
have done this by opening file using FileStream Object opening in Edit mode
with No Shared. But if I am try to apply same logic for ReadOnly files, then
it throws NonAuthorized exception. This exception is also raised even when I
try to open this file even if this is not in use by other application.

Any suggestion would be helpful

Thanks
Mayur Chauhan

[Mayur H Chauhan]

Thanks for you reply.
But here what I want to know is whether ReadOnly file is currently Open or
not. In Other words, Whether ReadOnly file is currently used by any other
application.
--
Thanks and Regards,
Mayur H Chauhan

Software Developer
www.myarcane.com
"JT" <JT@discussions .microsoft.comw rote in message
news:E0******** *************** ***********@mic rosoft.com...

Here is the code : You can use FileAttributes to do this

Imports System.IO
Dim Filepath as string = "c:\\myFile.txt "
If (File.GetAttrib utes(Filepath)) Then
If (FileAttributes .ReadOnly = FileAttributes. ReadOnly) Then
MsgBox("File is readd only")
End If
End If

"Mayur H Chauhan" wrote:

>All,
I am working on one product where we need to check for physical
file
is in use (if it is open by other application). What I found out is that
I
am able to trap for those files whose attribute is not Set as ReadOnly. I
have done this by opening file using FileStream Object opening in Edit
mode
with No Shared. But if I am try to apply same logic for ReadOnly files,
then
it throws NonAuthorized exception. This exception is also raised even
when I
try to open this file even if this is not in use by other application.

Any suggestion would be helpful

Thanks
Mayur Chauhan