I was suprised to see that you can put a DataTable into viewstate on a
page.

Why does this work? I had understood that the DataTable was in
serializable, which I thought was a requirement of being stored in the
viewstate.

It is serializable.

public class DataTable : MarshalByValueComponent, IListSource,
ISupportInitialize, ISerializable


"cmay" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> I was suprised to see that you can put a DataTable into viewstate on a
> page.
>
> Why does this work? I had understood that the DataTable was in
> serializable, which I thought was a requirement of being stored in the
> viewstate.
>

Interesting.

Why does MS say "The DataTable, DataRow, DataView, and DataViewManager
objects cannot be serialized and cannot be returned from an XML Web
service" from :
http://support.microsoft.com/default...b;en-us;306134

Does it need to be XMLSerializable for the webservice to use it?

Microsoft has example code returning DataTable objects from web services?
--
Direct Email: Michael.Baltic@RemoveCharactersUpTo#NCMC.Com

Staff Consultant II
Enterprise Web Services
Cardinal Solutions Group


"cmay" wrote:

> Interesting.
>
> Why does MS say "The DataTable, DataRow, DataView, and DataViewManager
> objects cannot be serialized and cannot be returned from an XML Web
> service" from :
> http://support.microsoft.com/default...b;en-us;306134
>
> Does it need to be XMLSerializable for the webservice to use it?
>
>

Are you asking IF they do, or stating THAT they do.


Chris

>>>>>Microsoft has example code returning DataTable objects from web services?
--
Direct Email: Michael.Baltic@RemoveCharacter*sUpTo#NCMC.Com


Staff Consultant II
Enterprise Web Services
Cardinal Solutions Group

I was stating that they do. I was questioning why you assumed this. In all
of the web services examples on msdn I have seen, they showed the performance
reasons why you would/wouldn't use a table/dataset.
--
Direct Email: Michael.Baltic@RemoveCharactersUpTo#NCMC.Com

Staff Consultant II
Enterprise Web Services
Cardinal Solutions Group


"cmay" wrote:

> Are you asking IF they do, or stating THAT they do.
>
>
> Chris
>
> >>>>>Microsoft has example code returning DataTable objects from web services?
> --
> Direct Email: Michael.Baltic@RemoveCharacterÂ*sUpTo#NCMC.Com
>
>
> Staff Consultant II
> Enterprise Web Services
> Cardinal Solutions Group
>
>