Upgrading XMLValidatingReader

[=?Utf-8?B?SlQ=?=]

Hi all,
As you know, the XMLValidatingRe ader is deprecated in .NET 2.0. I have the
following snippet from a .NET 1.1 implementation that I am struggling to
upgrade. I know I should use XMLReader.Creat e, but am struggling to get much
further. Any help would be appreciated. Thanks.

Public Shared Sub ValidateDocumen t(businessDocum ent As XmlDocument,
schemaStrongNam e As String)
' Constants
Const PARTS_IN_SCHEMA _STRONG_NAME As Integer = 2
Const PART_CLASS_NAME As Integer = 0
Const PART_QUALIFIED_ ASSEMBLY_NAME As Integer = 1

' Parse schema strong name
Dim assemblyNamePar ts As String() = schemaStrongNam e.Split(New Char()
{","c}, PARTS_IN_SCHEMA _STRONG_NAME)
Dim className As String = assemblyNamePar ts(PART_CLASS_N AME).Trim()
Dim fullyQualifiedA ssemblyName As String =
assemblyNamePar ts(PART_QUALIFI ED_ASSEMBLY_NAM E).Trim()

' Load assembly
Dim schemaAssembly As [Assembly] =
[Assembly].Load(fullyQual ifiedAssemblyNa me)

' Create instance of the BTS schema in order to get to the actual schemas
Dim schemaType As Type = schemaAssembly. GetType(classNa me)
Dim btsSchemaCollec tion As Microsoft.XLANG s.BaseTypes.Sch emaBase =
CType(Activator .CreateInstance (schemaType),
Microsoft.XLANG s.BaseTypes.Sch emaBase)

' Set up XML validating reader and validate document
Dim parserContext As New XmlParserContex t(Nothing, Nothing, "",
XmlSpace.None)
Dim reader As New XmlValidatingRe ader(businessDo cument.OuterXml ,
XmlNodeType.Doc ument, parserContext)
reader.Validati onType = ValidationType. Schema
reader.Schemas. Add(btsSchemaCo llection.Schema Collection)
While reader.Read()
End While
End Sub 'ValidateDocume nt

--
John

[=?Utf-8?B?SlQ=?=]

RE: Upgrading XMLValidatingRe ader

A little more info...
This is what I have come up with so far..

' Create instance of the BTS schema in order to get to the actual schemas
Dim schemaType As Type = schemaAssembly. GetType(classNa me)
Dim btsSchemaCollec tion As Microsoft.XLANG s.BaseTypes.Sch emaBase =
CType(Activator .CreateInstance (schemaType),
Microsoft.XLANG s.BaseTypes.Sch emaBase)
' Create the XmlSchemaSet class.
Dim sc As New XmlSchemaSet
' Add the schema to the collection.
sc.Add(btsSchem aCollection.Sch ema)

' Set the validation settings.
Dim settings As XmlReaderSettin gs = New XmlReaderSettin gs()
settings.Valida tionType = ValidationType. Schema
settings.Schema s = sc
'AddHandler settings.Valida tionEventHandle r, AddressOf
ValidationCallB ack

' Create the XmlReader object.
Using reader As XmlReader =
XmlReader.Creat e(businessDocum ent.SchemaInfo. SchemaAttribute .SchemaType.Sou rceUri, settings)

' Parse the file.
While reader.Read()
End While

End Using


When I run the app, I get an error that the parameter inputURI was not
recognized as a valid URI. Thus, this is the problem statement.

Using reader As XmlReader =
XmlReader.Creat e(businessDocum ent.SchemaInfo. SchemaAttribute .SchemaType.Sou rceUri, settings)

I have tried all kinds of baseURI, NamespaceURI, SourceURI combos and just
can't seem to get it. So, my very specific question is

How do I specify the inputURI for the document to be validated in creating
the XMLReader? This does NOT work
"businessDocume nt.SchemaInfo.S chemaAttribute. SchemaType.Sour ceUri"

Thanks


--
John


"JT" wrote:

Hi all,
As you know, the XMLValidatingRe ader is deprecated in .NET 2.0. I have the
following snippet from a .NET 1.1 implementation that I am struggling to
upgrade. I know I should use XMLReader.Creat e, but am struggling to get much
further. Any help would be appreciated. Thanks.
>
Public Shared Sub ValidateDocumen t(businessDocum ent As XmlDocument,
schemaStrongNam e As String)
' Constants
Const PARTS_IN_SCHEMA _STRONG_NAME As Integer = 2
Const PART_CLASS_NAME As Integer = 0
Const PART_QUALIFIED_ ASSEMBLY_NAME As Integer = 1
>
' Parse schema strong name
Dim assemblyNamePar ts As String() = schemaStrongNam e.Split(New Char()
{","c}, PARTS_IN_SCHEMA _STRONG_NAME)
Dim className As String = assemblyNamePar ts(PART_CLASS_N AME).Trim()
Dim fullyQualifiedA ssemblyName As String =
assemblyNamePar ts(PART_QUALIFI ED_ASSEMBLY_NAM E).Trim()
>
' Load assembly
Dim schemaAssembly As [Assembly] =
[Assembly].Load(fullyQual ifiedAssemblyNa me)
>
' Create instance of the BTS schema in order to get to the actual schemas
Dim schemaType As Type = schemaAssembly. GetType(classNa me)
Dim btsSchemaCollec tion As Microsoft.XLANG s.BaseTypes.Sch emaBase =
CType(Activator .CreateInstance (schemaType),
Microsoft.XLANG s.BaseTypes.Sch emaBase)
>
' Set up XML validating reader and validate document
Dim parserContext As New XmlParserContex t(Nothing, Nothing, "",
XmlSpace.None)
Dim reader As New XmlValidatingRe ader(businessDo cument.OuterXml ,
XmlNodeType.Doc ument, parserContext)
reader.Validati onType = ValidationType. Schema
reader.Schemas. Add(btsSchemaCo llection.Schema Collection)
While reader.Read()
End While
End Sub 'ValidateDocume nt
>
--
John

[Kevin Yu [MSFT]]

RE: Upgrading XMLValidatingRe ader

Hi John,

Based on my understanding, you're trying to validate an Xml given an
XmlDocument. If there is any misunderstandin g, please feel free to let me
know.

In .NET 2.0, schema validation is supported by XmlDocument, you can use
XmlDocument.Val idate to validate it directly. Here is a good example.

http://msdn2.microsoft.com/en-us/library/ms162371.aspx

Kevin Yu
Microsoft Online Community Support

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rights.)

[Kevin Yu [MSFT]]

RE: Upgrading XMLValidatingRe ader

Hi John,

The example in the document uses XmlReader.Creat e because it need to read
from a reader. You can directly load from a file or something else. Here I
wrote an example on my machine and hope it helps.

private void Form1_Load(obje ct sender, EventArgs e)
{
XmlSchema sch = XmlSchema.Read( new
XmlTextReader(@ "c:\xmlxsdProbl em.xsd"), null);
XmlDocument doc = new XmlDocument();
doc.Schemas.Add (sch);
doc.Load(@"c:\x mlxsdProblem.xm l");
ValidationEvent Handler a = new
ValidationEvent Handler(Validat ionhandler);
doc.Validate(a) ;
}

public void Validationhandl er(Object sender, ValidationEvent Args e)
{
//....
}

Kevin Yu
Microsoft Online Community Support
=============== =============== =============== =====

(This posting is provided "AS IS", with no warranties, and confers no
rights.)

[=?Utf-8?B?SlQ=?=]

RE: Upgrading XMLValidatingRe ader

Thank you very much Kevin.
--
John


"Kevin Yu [MSFT]" wrote:

Hi John,
>
The example in the document uses XmlReader.Creat e because it need to read
from a reader. You can directly load from a file or something else. Here I
wrote an example on my machine and hope it helps.
>
private void Form1_Load(obje ct sender, EventArgs e)
{
XmlSchema sch = XmlSchema.Read( new
XmlTextReader(@ "c:\xmlxsdProbl em.xsd"), null);
XmlDocument doc = new XmlDocument();
doc.Schemas.Add (sch);
doc.Load(@"c:\x mlxsdProblem.xm l");
ValidationEvent Handler a = new
ValidationEvent Handler(Validat ionhandler);
doc.Validate(a) ;
}
>
public void Validationhandl er(Object sender, ValidationEvent Args e)
{
//....
}
>
Kevin Yu
Microsoft Online Community Support
=============== =============== =============== =====
>
(This posting is provided "AS IS", with no warranties, and confers no
rights.)
>
>

[cduffy@ideacorporation.com]

Re: Upgrading XMLValidatingRe ader

Hi Kevin,

So the alternative is to load the load the entire document into ram?
Is there really no stream based validator in 2.0?

Chuck
Kevin Yu [MSFT] wrote:

Hi John,
>
The example in the document uses XmlReader.Creat e because it need to read
from a reader. You can directly load from a file or something else. Here I
wrote an example on my machine and hope it helps.
>
private void Form1_Load(obje ct sender, EventArgs e)
{
XmlSchema sch = XmlSchema.Read( new
XmlTextReader(@ "c:\xmlxsdProbl em.xsd"), null);
XmlDocument doc = new XmlDocument();
doc.Schemas.Add (sch);
doc.Load(@"c:\x mlxsdProblem.xm l");
ValidationEvent Handler a = new
ValidationEvent Handler(Validat ionhandler);
doc.Validate(a) ;
}
>
public void Validationhandl er(Object sender, ValidationEvent Args e)
{
//....
}
>
Kevin Yu
Microsoft Online Community Support
=============== =============== =============== =====
>
(This posting is provided "AS IS", with no warranties, and confers no
rights.)

[Christian Loris]

RE: Upgrading XMLValidatingRe ader

Hi all,
As you know, the XMLValidatingRe ader is deprecated in .NET 2.0. I have the
following snippet from a .NET 1.1 implementation that I am struggling to
upgrade. I know I should use XMLReader.Creat e, but am struggling to get much
further. Any help would be appreciated. Thanks.
>
Public Shared Sub ValidateDocumen t(businessDocum ent As XmlDocument,
schemaStrongNam e As String)
' Constants
Const PARTS_IN_SCHEMA _STRONG_NAME As Integer = 2
Const PART_CLASS_NAME As Integer = 0
Const PART_QUALIFIED_ ASSEMBLY_NAME As Integer = 1
>
' Parse schema strong name
Dim assemblyNamePar ts As String() = schemaStrongNam e.Split(New Char()
{","c}, PARTS_IN_SCHEMA _STRONG_NAME)
Dim className As String = assemblyNamePar ts(PART_CLASS_N AME).Trim()
Dim fullyQualifiedA ssemblyName As String =
assemblyNamePar ts(PART_QUALIFI ED_ASSEMBLY_NAM E).Trim()
>
' Load assembly
Dim schemaAssembly As [Assembly] =
[Assembly].Load(fullyQual ifiedAssemblyNa me)
>
' Create instance of the BTS schema in order to get to the actual schemas
Dim schemaType As Type = schemaAssembly. GetType(classNa me)
Dim btsSchemaCollec tion As Microsoft.XLANG s.BaseTypes.Sch emaBase =
CType(Activator .CreateInstance (schemaType),
Microsoft.XLANG s.BaseTypes.Sch emaBase)
>
' Set up XML validating reader and validate document
Dim parserContext As New XmlParserContex t(Nothing, Nothing, "",
XmlSpace.None)
Dim reader As New XmlValidatingRe ader(businessDo cument.OuterXml ,
XmlNodeType.Doc ument, parserContext)
reader.Validati onType = ValidationType. Schema
reader.Schemas. Add(btsSchemaCo llection.Schema Collection)
While reader.Read()
End While
End Sub 'ValidateDocume nt
>
--
John

I just ran into the same problem you are having and here is the result of my conversion. You can read the article on my blog:

http://www.implementsivillage.net/PermaLink,guid,cab6343b-3479-4484-85c6-e7e9b5502b44.aspx

Let me know if this is helpful!
Christian Loris

http://www.implementsivillage.net

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