Hello,
I am writing an application that needs to read a file that is already open by another process for writing.
When I do the following:
FileStream fs = new FileStream(file Name, FileMode.Open, FileAccess.Read );
BinaryReader br = new BinaryReader(fs );
I get the following exception:
{"The process cannot access the file \"EV1_0.log\ " because it is being used by another process." }
I wrote a test program in "regular" C as follows and do not get this error. It can always read this file.
if ((fp = fopen("EV1_0.lo g", "r")) == NULL)
{
printf("Failed to open file");
return;
}
if (fgets (result,200, fp) == NULL)
{
printf("Could not read from file");
return;
}
printf(result);
The process that has the file open for writing is written in C and cannot be modified.
Does anyone know how I can access this file for reading using C#? I tried using FileShare.Read as one of the FileStream constructor values and that does not seem to help.
Thanks,
Trellow 3 34494
Try specifying System.IO.FileS hare.ReadWrite
--
Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/
trellow, try using this line to open your filestream:
FileStream fs = new FileStream(file Name, FileMode.Open, FileAccess.Read ,
System.IO.FileS hare.ReadWrite)
This overload of the FileStream constructor allows you to open the file in a
non-exclusive mode.
"trellow" <an*******@disc ussions.microso ft.com> wrote in message
news:6C******** *************** ***********@mic rosoft.com... Hello,
I am writing an application that needs to read a file that is already open
by another process for writing. When I do the following:
FileStream fs = new FileStream(file Name, FileMode.Open, FileAccess.Read ); BinaryReader br = new BinaryReader(fs );
I get the following exception: {"The process cannot access the file \"EV1_0.log\ " because it is being
used by another process." } I wrote a test program in "regular" C as follows and do not get this
error. It can always read this file. if ((fp = fopen("EV1_0.lo g", "r")) == NULL) { printf("Failed to open file"); return; }
if (fgets (result,200, fp) == NULL) { printf("Could not read from file"); return; }
printf(result);
The process that has the file open for writing is written in C and cannot
be modified. Does anyone know how I can access this file for reading using C#? I tried
using FileShare.Read as one of the FileStream constructor values and that
does not seem to help. Thanks, Trellow
If the other process has specified that the file should not be shared, then
I think you're out of luck, but try with the FileShare.ReadW rite when
opening.
Arild
"trellow" <an*******@disc ussions.microso ft.com> wrote in message
news:6C******** *************** ***********@mic rosoft.com... Hello,
I am writing an application that needs to read a file that is already open
by another process for writing. When I do the following:
FileStream fs = new FileStream(file Name, FileMode.Open, FileAccess.Read ); BinaryReader br = new BinaryReader(fs );
I get the following exception: {"The process cannot access the file \"EV1_0.log\ " because it is being
used by another process." } I wrote a test program in "regular" C as follows and do not get this
error. It can always read this file. if ((fp = fopen("EV1_0.lo g", "r")) == NULL) { printf("Failed to open file"); return; }
if (fgets (result,200, fp) == NULL) { printf("Could not read from file"); return; }
printf(result);
The process that has the file open for writing is written in C and cannot
be modified. Does anyone know how I can access this file for reading using C#? I tried
using FileShare.Read as one of the FileStream constructor values and that
does not seem to help. Thanks, Trellow This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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