Hey Marcus,
One way to get around this is to use Win32 API CreateFile to create the
file. Use the returning handle to create a FileStream. use the FileStream
to create your StreamWriter (or just write directly to the FileStream).
Then, in order to close the file you are using call the Win32 API CloseHandle
on the file handle.
When you close a FileStream or StreamWriter, it tries to flush the contents
in its buffer to file. If you call CloseHandle on the file handle, the file
just gets closed without the flush.
[quoted text, click to view] "Marcus Ogden" wrote:
> When writing a file using StreamWriter, I'm having difficulty handling the
> "out of disk space" IOException. When catching this exception:
>
> - if I call Close() on the StreamWriter, it fails with the same IOException
> ("There is not enough space on the disk.")
> - if I call File.Delete(), it fails with another IOException ("The process
> cannot access the file... because it is being used by another process.")
>
> Any suggestions? Sample code below:
>
> private bool HandleRunningOutOfDiskSpaceTest()
> {
> string filename = @"e:\output.txt"; // e: is an almost full USB
> disk
> StreamWriter writer = new StreamWriter(filename, false,
> System.Text.Encoding.UTF8);
>
> try
> {
> while (true)
> {
> writer.Write("0");
> }
> }
> catch
> {
> try
> {
> writer.Close();
> File.Delete(filename);
> }
> catch
> {
> MessageBox.Show("Failed to clean up after running out of
> disk space.");
> return false;
> }
> }
>
> MessageBox.Show("Success!");
> return true;
> }
>
> Marcus Ogden
> Software Development
> QSR International Pty Ltd
> Melbourne, Australia
Why don't you check if there is enough disk space before you do the
writings, and notify the user if there is not enough space?
Look into System.Management.ManagementClass("Win32_LogicalDisk") for more
information abot doing this.
"Marcus Ogden" <MarcusOgden@discussions.microsoft.com> skrev i melding
news:2674B503-C853-4FEF-BE52-3E72A2CC0822@microsoft.com...
[quoted text, click to view] > When writing a file using StreamWriter, I'm having difficulty handling the
> "out of disk space" IOException. When catching this exception:
>
> - if I call Close() on the StreamWriter, it fails with the same
> IOException
> ("There is not enough space on the disk.")
> - if I call File.Delete(), it fails with another IOException ("The process
> cannot access the file... because it is being used by another process.")
>
> Any suggestions? Sample code below:
>
> private bool HandleRunningOutOfDiskSpaceTest()
> {
> string filename = @"e:\output.txt"; // e: is an almost full
> USB
> disk
> StreamWriter writer = new StreamWriter(filename, false,
> System.Text.Encoding.UTF8);
>
> try
> {
> while (true)
> {
> writer.Write("0");
> }
> }
> catch
> {
> try
> {
> writer.Close();
> File.Delete(filename);
> }
> catch
> {
> MessageBox.Show("Failed to clean up after running out
> of
> disk space.");
> return false;
> }
> }
>
> MessageBox.Show("Success!");
> return true;
> }
>
> Marcus Ogden
> Software Development
> QSR International Pty Ltd
> Melbourne, Australia
>
