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Bug Report B97246
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FileAttachments.Win - A 'File cannot be found' error occurs when trying to open an attachment from the 'FileAttachmentPropertyEditor' or with the help of the 'Open' Action

created 17 years ago

Hello,
I would like to contribute to bugreport B97047.
I can observe the same problem here. But this time it does not happen with openoffice files, but with MS Office or other files. I think, this has nothing to do with the filetype, but i happens after running the application for some time and opening a bunch of files.
Maybe it comes from spaces in filenames, I'm not sure.
Any case after closing and reopening the application the problem has disappeared, but reappears again after some time. I did not observe this error in previous versions.
thanks
reinhold

Comments (2)
DevExpress Support Team 17 years ago

    Hello Reinhold,
    The FileAttachment editor (as well as the FileAttachmentController class) saves information into a temporary file. To open this file, it uses the 'Process.Start' method, which automatically searches an associated application and starts it.
    The FileAttachment editor adds a handler to the 'Exited' event of the started process to delete the created file.
    Currently, we suspect that the file is opened by an intermediate application which starts a new process and immediately finishes. So, the FileAttachment editor immediately receives a notification that the started process "exited" and deletes the created file.
    We will work on this issue and publish a solution when it is ready.
    Thanks,
    Dan

    DevExpress Support Team 17 years ago

      Hello,
      We have fixed this issue.
      For more details, see "FileAttachments.Win: Introduce a capability to implement a custom algorithm to open an attachment with the help of some application" at http://www.devexpress.com/issue=S30555
      Thanks, Dan.

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