Re: writeXML(fullFilePath) DOESN'T Write

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From: Art Cabot (trash_at_stricklandtechnical.com)
Date: 07/07/04 

Date: Wed, 7 Jul 2004 15:54:01 -0700

Are you saying that even though I can READ the file into the dataset from the local hard drive's directory (which the emulator is mapping as \Program Files\Project\), I can't WRITE the file back to the same location?

So far, I haven't tried to find it inside the emulator and wasn't even aware that it was that functional. Guess it's worth a try, though. 

-- 
Art Cabot
Strickland Technical Services, Inc.
Augusta, Georgia
""Ilya Tumanov [MS]"" wrote:
> I'd say that's a concrete proof the file is saved. 
> Should file not be saved, you would get FileNotFound exception which you 
> had before on attempt to load file without proper path.
> If you have doubts, you can add some data into the DataSet, save it, load 
> it again and see if data was actually loaded. 
> 
> As to missing file, by any chance, are you trying to locate this file on 
> desktop's hard drive using desktop's search and explorer?
> If so, you won't be able to find it as emulator's file system is emulated 
> as well and is not mapped to desktop's file system.
> 
> If you're using file explorer on the emulator, could you please describe 
> how exactly you're navigating to the emulator's root folder?
> 
> Best regards,
> 
> Ilya
> 
> This posting is provided "AS IS" with no warranties, and confers no rights.
> --------------------
> > Thread-Topic: writeXML(fullFilePath) DOESN'T Write
> > thread-index: AcRkE14P0uSfOuRmQNyl7qC28hJUhg==
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> > From: =?Utf-8?B?QXJ0IENhYm90?= <trash@stricklandtechnical.com>
> > References:  <BCA6D9DC-F5B4-4E33-9F02-02FA480EFC4A@microsoft.com> 
> <u5RU8KyYEHA.3512@TK2MSFTNGP12.phx.gbl> 
> <AEF3C342-A1B4-4A83-B4D9-437AC56968D1@microsoft.com> 
> <D47D22B7-C890-462A-BE94-13C7C229D4D2@microsoft.com> 
> <pQ7omM9YEHA.2804@cpmsftngxa06.phx.gbl>
> > Subject: Re: writeXML(fullFilePath) DOESN'T Write
> > Date: Wed, 7 Jul 2004 04:13:01 -0700
> > Lines: 145
> > Message-ID: <35A84A1B-89D3-4F3A-BF41-7260DC7B05CA@microsoft.com>
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> > Xref: cpmsftngxa06.phx.gbl 
> microsoft.public.dotnet.framework.compactframework:56772
> > X-Tomcat-NG: microsoft.public.dotnet.framework.compactframework
> > 
> > Sorry, I meant to tell you...
> > 
> > When I tried your suggestion of immediately creating another dataset and 
> trying to read the file just "created", as in:
> > 
> >           Dim ds As DataSet = New DataSet 
> >  
> >            ds.WriteXml("\Foo.xml") 
> >            MsgBox("Just executed the WriteXML command") 
> >            Dim anotherDs = New DataSet 
> >  
> >            anotherDs.ReadXml ("\Foo.xml") 
> > 
> >             MsgBox("Just executed the ReadXML command") 
> > 
> > it executes with no exceptions --- and no file. I've looked for the file 
> at all levels of the directory from which the app is running, both manually 
> and via Search. I already know where the app is READING the XML file from 
> and, since the path I give the writeXML function is exactly the same, it 
> seems the file should be there. If it is, though, it's invisible.
> > 
> > As posted earlier, a programmer at our corporate office tried to write 
> XML within both Windows CE and Pocket PC emulators and it worked. This is a 
> very frustrating mystery...
> > -- 
> > Art Cabot
> > Strickland Technical Services, Inc.
> > Augusta, Georgia
> > 
> > 
> > ""Ilya Tumanov [MS]"" wrote:
> > 
> > > Could you please describe how exactly you're looking for a file? 
> > > I also wonder if you get an exception on attempt to load saved file...
> > > 
> > > Best regards,
> > > 
> > > Ilya
> > > 
> > > This posting is provided "AS IS" with no warranties, and confers no 
> rights.
> > > --------------------
> > > > Thread-Topic: writeXML(fullFilePath) DOESN'T Write
> > > > thread-index: AcRju6KwGDQVK4dfRI6GvmgalEjZcg==
> > > > X-WBNR-Posting-Host: 68.220.90.130
> > > > From: =?Utf-8?B?QXJ0IENhYm90?= <trash@stricklandtechnical.com>
> > > > References:  <BCA6D9DC-F5B4-4E33-9F02-02FA480EFC4A@microsoft.com> 
> > > <u5RU8KyYEHA.3512@TK2MSFTNGP12.phx.gbl> 
> > > <AEF3C342-A1B4-4A83-B4D9-437AC56968D1@microsoft.com>
> > > > Subject: Re: writeXML(fullFilePath) DOESN'T Write
> > > > Date: Tue, 6 Jul 2004 17:45:01 -0700
> > > > Lines: 64
> > > > Message-ID: <D47D22B7-C890-462A-BE94-13C7C229D4D2@microsoft.com>
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> > > > Newsgroups: microsoft.public.dotnet.framework.compactframework
> > > > NNTP-Posting-Host: TK2MSFTNGXA03.phx.gbl 127.0.0.1
> > > > Path: cpmsftngxa06.phx.gbl!TK2MSFTNGXA01.phx.gbl!TK2MSFTNGXA03.phx.gbl
> > > > Xref: cpmsftngxa06.phx.gbl 
> > > microsoft.public.dotnet.framework.compactframework:56729
> > > > X-Tomcat-NG: microsoft.public.dotnet.framework.compactframework
> > > > 
> > > > I thought I might have the answer when I saw this in the emulator's 
> Help 
> > > file:
> > > > 
> > > > The following hardware and drivers are not supported in the Emulator: 
> > > > 
> > > > Universal serial bus (USB) devices 
> > > > 
> > > > PC Card devices 
> > > > 
> > > > Storage devices, which include compact flash (CF) cards and hard 
> disks 
> > > > 
> > > > File system drivers, which include file allocation table (FAT), 
> compact 
> > > disc (CD), and digital video disc (DVD) drivers 
> > > > 
> > > > IEEE 1394 devices 
> > > > 
> > > > But when I had a couple of programmers at our corporate headquarters 
> try 
> > > on both a Windows CE and Pocket PC emulator, it worked for them.
> > > > 
> > > > What am I missing?
> > > > -- 
> > > > Art Cabot
> > > > Strickland Technical Services, Inc.
> > > > Augusta, Georgia
> > > > 
> > > > 
> > > > "Art Cabot" wrote:
> > > > 
> > > > > Right now it's running on a Windows CE emulator and reading its 
> input 
> > > XML into the dataset from the path noted in the code I've provided 
> (using 
> > > variable sPath). I'm simply trying to write the XML back out to the 
> same 
> > > path using the ds.writeXML(fullPath) command.
> > > > > 
> > > > > The only reason rights are being mentioned at all is because we're 
> > > trying to figure out why the XML is not getting written back out. If I 
> use 
> > > one of the sample code pieces from the VB .NET Resource Kit ("How To 
> Write 
> > > An Offline Application") that runs under the full .NET Framework, it 
> works 
> > > great, but when I move down into the Compact Framework, it won't write.
> > > > > 
> > > > > To reiterate, it throws no exceptions, but the file just isn't 
> there 
> > > --- anywhere --- when I look.
> > > > > -- 
> > > > > Art Cabot
> > > > > Strickland Technical Services, Inc.
> > > > > Augusta, Georgia
> > > > > 
> > > > > 
> > > > > "Alex Feinman [MVP]" wrote:
> > > > > 
> > > > > > Wait a minute... Are you doing this on a Windows CE device or on 
> the
> > > > > > desktop? If on the device, what Write Rights are you talking 
> about? 
> > > Windows
> > > > > > CE does not have filesystem permissions. Or perhaps you expect to 
> > > find the
> > > > > > dataset xml written by the code on the device in your PC 
> filesystem?
> > > > > > 
> > > > > > -- 
> > > > > > Alex Feinman
> > > > > > ---
> > > > > > Visit http://www.opennetcf.org
> > > > > > "Art Cabot" <trash@stricklandtechnical.com> wrote in message
> > > > > > news:BCA6D9DC-F5B4-4E33-9F02-02FA480EFC4A@microsoft.com...
> > > > > > > I'm trying to write a DataSet back out to the same location it 
> > > reads in
> > > > > > from with readXML(fullFilePath), just to a different filename. 
> The 
> > > program
> > > > > > breezes right on through with no exceptions, but the file just 
> isn't 
> > > there!
> > > > > > >
> > > > > > > There's data in the DataSet and I have write rights to the 
> > > fullFilePath
> > > > > > specified.
> > > > > > >
> > > > > > > What could be happening and how do I get around it?
> > > > > > > -- 
> > > > > > > Art Cabot
> > > > > > > Strickland Technical Services, Inc.
> > > > > > > Augusta, Georgia
> > > > > > 
> > > > > > 
> > > > > > 
> > > > 
> > > 
> > > 
> > 
> 
>

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