Start Xmlreader to construct xmlvalidatingreader

Xmlreader to construct xmlvalidatingreader

This is the default validation type if no type is specified. Write Line("Document is NOT valid.") End If validator. Close() Return is Valid End Function Private Sub Validation Callback(By Val sender As Object, By Val args As Validation Event Args) System. This is a useful class for creating new XML documents.

Resolve Uri(base URI, "Customer.xsd") Dim input Stream As IO. The bug causes the pointer to be set back on the first attribute. Message); is Valid = False End Sub End Class Note the lack of error handling in this example. NET versions make the assumption that both the XML and XSD files already exist.

For example, the following code causes an endless loop because the pointer is always positioned on the first attribute and never advances: member implicitly checks what type of validation to perform. You might want to extend this example to include a . It simply writes out each node in a forward-only, non-cached manner.

Validation Event Handler = event Handler; method simply reads the XML instance document and validates the element against the schema. Add("urn:schemas-vbdna-net:framework", New Xml Text Reader(xsd File)) 'Add the list of schemas to validate against to the schemas collection validator. Add(schemas) 'Wire up the callback to our Validation Call Back routine Add Handler validator. Even text contained in an element is referred to as a text node.

If invalid or missing data exists, the event handler is called. Validation Event Handler, Address Of Validation Callback While (validator. We do nothing with this 'because we only want to know if the entire document is valid or not. While working with these various components of XML, it is helpful that they all share a common set of attributes that forms the basis for all the components of an XML document.

Because the code differs significantly in Visual Basic and C#, both language implementations are shown. That basis is realized through the To make this type of structure navigable, everything contained in the structure must share a common interface or be inherited from the same base class.

The base class that all the components of an XML document in .

The current node refers to the node on which the reader is positioned.