Delete element in an xml file using Isolated Storage

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I have video.xml file like this:

<Videos>
                        <Video>
                            <Link>http://ift.tt/1Dntdpu;
                        </Video>
                        <Video>
                            <Link>http://ift.tt/1Dntdpw;
                        </Video>
                        <Video>
                            <Link>http://ift.tt/1tBBh6e;
                        </Video>
                        <Video>
                            <Link>http://ift.tt/1tBBhms;
                        </Video>
                        <Video>
                            <Link>http://ift.tt/1tBBfLC;
                        </Video>
                    </Videos>"

and i tried to delete an element with this method:

IsolatedStorageFile iso = IsolatedStorageFile.GetUserStoreForApplication(); 
        XDocument document;
        using (IsolatedStorageFileStream filestream = iso.OpenFile("Video.xml", FileMode.Open, FileAccess.ReadWrite, FileShare.None))
        {
            document = XDocument.Load(filestream);
            var Videos = document.Element("Videos");
            Videos.Descendants("Video").Where(vid => vid.Element("Link").Value.Equals("example link")).FirstOrDefault().Remove();
        }
        using (IsolatedStorageFileStream filestream1 = iso.OpenFile("Video.xml", FileMode.Open, FileAccess.ReadWrite, FileShare.None))
        {
            document.Save(filestream1);
        } 

1st time, it done, but in 2nd time it crashed and the error is : There are multiple root elements. Line 15, position 18. Please help me. thank you !

asked 37 secs ago

isibiki

1

Delete element in an xml file using Isolated Storage