DataSet/XmlSchema/DataGrid Framework 1.1

DataSet/XmlSchema/DataGrid Framework 1.1 - 2.0 Problem

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Martin Madreza - 26 Feb 2007 15:25 GMT

Hi,

I have a problem with reading an XmlSchema with Frameowk 2.0 and an
own DataType. I found no example
(searching two days).

What I do is:

DataSet dataSet = new DataSet();
dataSet.ReadXml("{path}/MySchemaAndData.xml");

dataView = dataSet.Tables[0];
dataGridView.DataSource = dataView;

Easy with Framework 1.1 (VisualStudio 2003). Everything is working
fine. Now with rameowrk 2.0 I get one
error after another, maybe someone can help me solve the problem,
knows a link or what ever. I'm really
despairing.

If need, i can write more information, what i tried unsuccesfully for
the last 20h.

The Schema looks like following:

<?xml version="1.0" encoding="ISO-8859-1"?>
<Data version="V1.0.0.0">
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" id="daten"
xmlns="" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xs:element name="data" msdata:IsDataSet="true" msdata:Locale="de-
DE">
<xs:complexType>
<xs:choice maxOccurs="unbounded">
<xs:element name="aTableName" msdata:Expression="Column">
<xs:complexType>
<xs:attribute name="Column" type="xs:string"
type="xs:string" msdata:DataType="MyNamespace.MyClass, MyAssemlyName,
Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"/>/>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
<aTableName Column="1"/>
</Data>

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John Saunders - 26 Feb 2007 17:40 GMT

> Hi,
>
> I have a problem with reading an XmlSchema with Frameowk 2.0 and an
> own DataType. I found no example
> (searching two days).

...

> The Schema looks like following:
>
[quoted text clipped - 19 lines]
> <aTableName Column="1"/>
> </Data>

As a first guess, I'd suggest you extract that schema from the data.
Secondly, your data does not match your schema. "Data" is not the same as
"data".

John

Reply to this Message

Martin Madreza - 27 Feb 2007 09:21 GMT

hi,

yes sorry, i copied the schema from the original and modified a litte
(from german tio english)...

i extract the dqata from the data set with a testproject, the result
is, that

'msdata:DataType="MyNamespace.MyClass, MyAssemlyName'

becomes an element. it's not possible to set them (in the dataset) to
an attribute. the element is under a xs:sequence, and the structur
changes...

so far it works. but i cant set the value from the schema. in the
example below column value 1 is never set. in 1.1 everything works,
now i found nothing about what changed in 2.0 and what i have to
change to make it work. does any example exist with DataType =
OwnDataType?

hope you can help me to come forward... and sorry for the bad example.
if something ambiguous, please tell and i try to specify it

here is the example

<?xml version="1.0" standalone="yes"?>
<data>
<xs:schema id="data" xmlns="" xmlns:xs="http://www.w3.org/2001/
XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xs:element name="data" msdata:IsDataSet="true" msdata:Locale="de-
DE">
<xs:complexType>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element name="aTableName">
<xs:complexType>
<xs:sequence>
<xs:element name="Column" type="xs:string"
msdata:DataType="MyNamespace.MyClass, MyAssemlyName, Version=1.0.0.0,
Culture=neutral, PublicKeyToken=null"/>/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>
<aTableName>
<Column>1</Column>
</aTableName>
</data>

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DataSet/XmlSchema/DataGrid Framework 1.1 - 2.0 Problem

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