xsd.exe creating invalid constraints in dataset from xsd file

Posted by Dan Neely on Stack Overflow See other posts from Stack Overflow or by Dan Neely
Published on 2009-12-08T14:00:55Z Indexed on 2010/05/03 14:28 UTC
Read the original article Hit count: 264

Filed under:

c#

|

dataset

|

xsd.exe

|

Xml

I have a sequence with an allowed minimum length of zero in my xsd. When I try and load an xml file which doesn't have any elements of the sequence into the DataSet that xsd.exe created I get an exception indicating that my file violated one of the DataSet's constraints. The xml file validates against the schema so I know it's valid. Is there anything I can do to make the tool generate a valid dataset?

<xs:sequence minOccurs="0" maxOccurs="unbounded">
	<xs:element name="Numbers" type="xs:double"/>
</xs:sequence>

Edit: if I change my schema to this the generated code works properly. It looks wrong to me though since it appears to be implying that I could have sequence items with nothing in them, which doesn't make any sense.

<xs:sequence minOccurs="0" maxOccurs="unbounded">
	<xs:element name="Numbers" type="xs:double" minOccurs="0"/>
</xs:sequence>

© Stack Overflow or respective owner

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More

Related posts about dataset

Dataset -> XML Document - Load DataSet into an XML Document - C#.Net

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello I'm trying to read a dataset as xml and load it into an XML Document. XmlDocument contractHistoryXMLSchemaDoc = new XmlDocument(); using (MemoryStream ms = new MemoryStream()) { //XmlWriterSettings xmlWSettings = new XmlWriterSettings(); //xmlWSettings.ConformanceLevel = ConformanceLevel… >>> More
Combine multiple dataset columns to one dataset

as seen on Stack Overflow - Search for 'Stack Overflow'
I have multiple datasets that I would like to combine into one. There is a common ID field that can be associated to each row. Calling Merge on the dataset will add additional rows to the dataset, but I would like to combine the additional columns. There are too many fields to do this in one query… >>> More
Making a DataSet from another DataSet

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi folks I have a client-server project (small project for companies in C#) and the server has a DataSet with some tables (there is no Database for some reasons so we save the DataSet as an XML file). when the clients connect to the server, the server should send some informations to the client depends… >>> More
Declaring variables with New DataSet vs DataSet

as seen on Stack Overflow - Search for 'Stack Overflow'
What is the impact of creating variables using: Dim ds as New DataSet ds = GetActualData() where GetActualData() also creates a New DataSet and returns it? Does the original empty DataSet that was 'New'ed just get left in the Heap? What if this kind of code was in many places? Would… >>> More
DataSet.Copy vs Dataset.Clone

as seen on Stack Overflow - Search for 'Stack Overflow'
Can someone explain me DataSet.Copy vs Dataset.Clone Also let me know some scenario's where we can use these >>> More