[Mono-dev] creating excel files

eng. Ahmed Youssef ahhatem at gmail.com
Mon Feb 28 12:55:14 EST 2011


I filed it here:
https://bugzilla.novell.com/show_bug.cgi?id=675564

<https://bugzilla.novell.com/show_bug.cgi?id=675564>Is there anything else I
should do?

On Mon, Feb 28, 2011 at 7:30 PM, Robert Jordan <robertj at gmx.net> wrote:

> On 28.02.2011 14:55, eng. Ahmed Youssef wrote:
> > But it doesn't behave this way under .net.
> > It doesn't dispose the stream.
>
> Please file a bug at http://mono-project.com/Bugs.
>
> MS.NET is actually only closing part streams (as documented),
> while Mono is closing the underlying package stream as well,
> which is not documented.
>
> Robert
>
> >
> > On Mon, Feb 28, 2011 at 3:26 PM, Rafael Teixeira<monoman at gmail.com>
>  wrote:
> >
> >> That is the documented (expected) behavior of Close:
> >>
> >> "Saves and closes the package plus all underlying part streams."
> >> See
> >>
> http://msdn.microsoft.com/en-us/library/system.io.packaging.package.close.aspx
> >>
> >> And that is a common pattern in all reader/writer classes in .NET.
> >>
> >> Hope it clarifies it all,
> >>
> >> Rafael "Monoman" Teixeira
> >> ---------------------------------------
> >> "The most exciting phrase to hear in science, the one that heralds new
> >> discoveries, is not 'Eureka!' (I found it!) but 'That's funny ...'"
> >> Isaac Asimov
> >> US science fiction novelist&  scholar (1920 - 1992)
> >>
> >>
> >>
> >> On Sat, Feb 26, 2011 at 9:04 AM, eng. Ahmed Youssef<ahhatem at gmail.com
> >wrote:
> >>
> >>> Hello everyone,
> >>>
> >>> Sorry for the late reply but I thought I do my homework first...
> >>>
> >>> After moving to mono 2.10 on opensuse, I managed to make the library
> work
> >>> on mono.
> >>> The problem was with this scenario:
> >>>
> >>> using System;
> >>> using System.IO.Packaging;
> >>> using System.IO;
> >>>
> >>> namespace test
> >>> {
> >>> class MainClass
> >>>   {
> >>> public static void Main (string[] args)
> >>> {
> >>>   MemoryStream stream = new MemoryStream ();
> >>> Package p = Package.Open (stream, FileMode.Create,
> FileAccess.ReadWrite);
> >>>   p.Close ();
> >>> stream.ReadByte();
> >>>   }
> >>> }
> >>> }
> >>>
> >>> throws this exception:
> >>>
> >>> Unhandled Exception: System.ObjectDisposedException: The object was
> used
> >>> after being disposed.
> >>>    at System.IO.MemoryStream.CheckIfClosedThrowDisposed () [0x00000] in
> >>>
> /usr/src/packages/BUILD/mono-2.10/mcs/class/corlib/System.IO/MemoryStream.cs:133
> >>>    at System.IO.MemoryStream.ReadByte () [0x00000] in
> >>>
> /usr/src/packages/BUILD/mono-2.10/mcs/class/corlib/System.IO/MemoryStream.cs:261
> >>>    at test.MainClass.Main (System.String[] args) [0x00000] in<filename
> >>> unknown>:0
> >>>
> >>>
> >>> the package.Close call internally makes this:
> >>>
> >>> public void Close()
> >>> {
> >>> this.Flush();
> >>> this.Dispose(1);
> >>> }
> >>>
> >>> for some reason the dispose call disposes the stream too....
> >>>
> >>> After replacing the package.Close() with package.Flush().... the EPPlus
> >>> lib works nicely....
> >>>
> >>> I hope that is useful... I don't mind digging into the issue more but I
> am
> >>> not sure how to do that.... any info would be appreciated.
> >>> I hope you confirm that it is a mono issue and that it will be fixed so
> >>> that either mono is fixed or the library...
> >>>
> >>> Thank you all for the help.
> >>>
> >>>
> >>> On Tue, Feb 22, 2011 at 7:11 PM, jmalcolm<malcolm.justin at gmail.com
> >wrote:
> >>>
> >>>>
> >>>> I am not sure how big the spreadsheets are that you need to work with
> but
> >>>> I
> >>>> have used the free version of GemBox to great effect:
> >>>>
> >>>> http://www.gemboxsoftware.com/GBSpreadsheetFree.htm
> >>>> --
> >>>> View this message in context:
> >>>>
> http://mono.1490590.n4.nabble.com/creating-excel-files-tp3315324p3319632.html
> >>>> Sent from the Mono - Dev mailing list archive at Nabble.com.
> >>>> _______________________________________________
> >>>> Mono-devel-list mailing list
> >>>> Mono-devel-list at lists.ximian.com
> >>>> http://lists.ximian.com/mailman/listinfo/mono-devel-list
> >>>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Mono-devel-list mailing list
> >>> Mono-devel-list at lists.ximian.com
> >>> http://lists.ximian.com/mailman/listinfo/mono-devel-list
> >>>
> >>>
> >>
> >
> >
> >
> > _______________________________________________
> > Mono-devel-list mailing list
> > Mono-devel-list at lists.ximian.com
> > http://lists.ximian.com/mailman/listinfo/mono-devel-list
>
>
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