Re: Beginner with Questions re: WPF, WCF, LINQ

Steve Gerrard wrote:
Dave wrote:
OK I am starting to understand. Basically the service does return XML
but the frontend will create a data object from the XML automagically.

Now I need to find a good tutorial on all this stuff.

Thanks again for clearing this up for me.

Just to reiterate, a web service can return a DataSet. It will actually be XML data, following Microsoft's diffgram XML schema, but for all intents and purposes, it is a dataset.

The client can call the method that returns a dataset, perhaps passing some parameter values, and assign the return value to a dataset variable. As you put it, all the xml processing happens automagically.

It can be a bit bulky for returning many rows, since the column names will be repeated twice for each row in the actual XML, but it works very smoothly.

I would not use a DataSet for a web service. It will not be consumable
from non-.NET clients.

Arne
.

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