Serailizing to a MemoryStream

[Ashley Brewerton]

When I use the DataSet.WriteXml using a XmlTextWriter to a MemoryStream,
when I try to read the stream back into a DatasSet using ReadXml I get an
error indicating the root not is not avaialable. However if I write from
the MemoryStream to a file then read the file into a DataSet it works as it
should.

Couldn't find any reference to this onMSDN or the usual C# sites.

Thanks.

Ashleyb

[Dmitri Shvetsov]

I can tell you the same. I could not solve this problem about 2-3 months ago
and even write about the same problem here. I refused at that stage.

When you try to save some intermediate information to a file you can find a
difference, sounds like the memory stream was not flashed, did not read the
stream to the very end etc. I assume that it's a bug. If you can find a
solution please let me know.

Dmitri.

"Ashley Brewerton" <as****@brewerton.net> wrote in message
news:bf**********@lust.ihug.co.nz...

When I use the DataSet.WriteXml using a XmlTextWriter to a MemoryStream,
when I try to read the stream back into a DatasSet using ReadXml I get an
error indicating the root not is not avaialable. However if I write from
the MemoryStream to a file then read the file into a DataSet it works as it should.

Couldn't find any reference to this onMSDN or the usual C# sites.

Thanks.

Ashleyb

[Andreas Huber]

Ashley Brewerton wrote:

When I use the DataSet.WriteXml using a XmlTextWriter to a
MemoryStream, when I try to read the stream back into a DatasSet
using ReadXml I get an error indicating the root not is not
avaialable. However if I write from the MemoryStream to a file then
read the file into a DataSet it works as it should.

Just guessing: Have you forgotten to reset MemoryStream.Position before
calling ReadXml()?

Regards,

Andreas

[Ashley]

Thanks Andreas. Now resolved.

Ashley
"Andreas Huber" <ah****@gmx.net> wrote in message
news:3f******@news.swissonline.ch...

Ashley Brewerton wrote:

When I use the DataSet.WriteXml using a XmlTextWriter to a
MemoryStream, when I try to read the stream back into a DatasSet
using ReadXml I get an error indicating the root not is not
avaialable. However if I write from the MemoryStream to a file then
read the file into a DataSet it works as it should.

Just guessing: Have you forgotten to reset MemoryStream.Position before
calling ReadXml()?

Regards,

Andreas

[labman36333]

Just guessing: Have you forgotten to reset MemoryStream.Position before
calling ReadXml()?

Yes, thank you. I couldn't figure this out for the longest time... the stream was the right length, but always returning 0s. I couldn't find any well-written documentation for the MemoryStream object... or at least none that I could stand to sift through. This worked perfectly, though.