CODEWITHSUNDEEP
c#asp.netfilefile-uploadasynchronous
James Ford
James Ford

Reputation: 949

File used by another process asp.net

I have developed a website in asp.net mvc that reads from a xml-file to display some data. This file is regularly updated by my backend process that builds this xml-file and finally uploads it to my webhost via ftp.

This have been working fine, but in the last week or so I have gotten into a problem. I get the asp.net exception "file is being used by another process". I have no clue what this can be, and I find it very odd. I haven't even changed anything in my code for some months now.

Below you will find a typical method that I use for serializing my xml-file:

    public static IEnumerable<FStreamObject> GetStreams()
    {

        using (FileStream fs = new FileStream(HttpRuntime.AppDomainAppPath+"/ff.xml", FileMode.Open))
        {
            XmlReader ffXML = XmlReader.Create(fs);

            XmlSerializer ser = new XmlSerializer(typeof(FXmlModel));

            var sList = (FXmlModel)ser.Deserialize(ffXML);

            fs.Close();

            return sList.FSObjectList.OrderByDescending(x => x.Cash);
        }

    }

Upvotes: 1

Views: 1829

Answers (2)

Demian
Demian

Reputation: 103

The problem could be that an Exception is being thrown before the fs.Close() invocation. Try using a try-catch-fianlly and put the fs.Close() in the finally block.

Also have in mind the Close() method is not destroying the object immediately, you could also try using Dispose() to be sure the reference is being cleaned from memory.

Hope it helps!

Upvotes: 1

Shyju
Shyju

Reputation: 218722

I guess the other process which updates the content of your file still has a lock on this file. So you may need to fix the code of that to make sure you are releasing any locks /connection to this file once you are done with the file operations.

Upvotes: 2

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