I have created a strongly typed dataset and populated it with data in my
data layer.  I have confirmed that the DataSet does, in fact contain my data
and that there is a schema governing this data (obviously, since it is a
strongly typed DataSet).

Eric van der Vlist's book XML Schema says that we can use xs:key to declare
co-occurrence constraints.  The example he uses (boiled down a bit) is a
"book" element that must have either an "isbn" attribute or an "isbn" child
element, but not both:

XML validation error. Help required
If anyone can help me, thankyou, thankyou...
When I run this code code I get this error:
The data at the root level is invalid. Line 1, position 39.

I am tring to write to a custom event log on a Web Server from a Web Service
on the same machine. Here is my code:
// Create the source, if it does not already exist.
if(!EventLog.SourceExists(sAppName))

I am new to XML using .net. i have a simple question
I have a datatable with oracle. I need to get the data from the table
and return the data in form of XML but XML has some schema. I have
.XSD file.

Has anyone else experienced issues with .NET Framework 1.1 SP1 and Xsl
transformation services?  We are experiencing issues with such fundamental
items as 'last()' throwing an 'index was outside the bounds of the array'
error whenever we use it in conjunction with for-each and ...

All,
I am having a tough time figuring out how to code a simple app to read an
xml file and an xsd file and validate the xml file using the xsd without
using a namespace for the schema. Help? Also, is there a .NET XML FAQ?

Dim strSQL As String = "SELECT lastname, firstname, title, hiredate " & _
"FROM Employees "
If Len(lastname) > 0 Then
strSQL += "WHERE lastname = '" & lastname & "' "

Probably a really basic question, but I cant find an answer ...
I have an xml file of books something like:
<product>
<isbn>0-735-61374-5</isbn>

I have this class:
public class StoredItemElement : XmlElement
{
protected internal StoredItemElement(string prefix, string localName, string

It is my understanding that in order to append XML to a file you would
have to read the file in as an XML document and insert the node.
However, what if the file is close to 1GB in size?  Would you require

I'd like to associate (link elements in) a linkbase (xml) file with (elements
in) an instance document (xml).  I've never seen an example of how to do
this.  Anyone know how to do this in .NET?
Thanks

I am returning a "distinct" list of nodes from an xmldocument using
selectnodes. I get the list fine, and I can select individual nodes,
but when I try to access the count of the list my computer just hangs.
Also, if I try to iterate the list using foreach the first time works,

I am running this in SQL Server 2000:
SELECT lastname, firstname, title, hiredate
FROM employees
FOR XML AUTO

I've been though many posts in this group and have yet to find one that
helps me understand how to accomplish my goal.
I have an XML document that stores user specific values that I need to
maintain based on options they select in a web app.  Here's the XML: