XmlSchemaValidationFlags Enum
Definition
Important
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Specifies schema validation options used by the XmlSchemaValidator and XmlReader classes.
This enumeration supports a bitwise combination of its member values.
public enum class XmlSchemaValidationFlags
[System.Flags]
public enum XmlSchemaValidationFlags
[<System.Flags>]
type XmlSchemaValidationFlags =
Public Enum XmlSchemaValidationFlags
- Inheritance
- Attributes
Fields
AllowXmlAttributes | 16 | Allow xml:* attributes even if they are not defined in the schema. The attributes will be validated based on their data type. |
None | 0 | Do not process identity constraints, inline schemas, schema location hints, or report schema validation warnings. |
ProcessIdentityConstraints | 8 | Process identity constraints ( |
ProcessInlineSchema | 1 | Process inline schemas encountered during validation. |
ProcessSchemaLocation | 2 | Process schema location hints ( |
ReportValidationWarnings | 4 | Report schema validation warnings encountered during validation. |
Examples
For an example that uses the XmlSchemaValidationFlags
enumeration, see the XmlSchemaValidator class.
Remarks
When used with the XmlReader, XmlSchemaValidationFlags
values define validation options used by a schema validating XmlReader to perform XML validation against a schema. XmlSchemaValidationFlags
values for a validating XmlReader are specified using the XmlReaderSettings.ValidationFlags property.
When using the AllowXmlAttributes
value:
When a schema doesn't import the Xml namespace.
If
AllowXmlAttributes
is set totrue
(default) and the instance document contains Xml attributes, the validation engine will load a snapshot of the default Xml namespace schema and use it for validation. If Xml attributes used in the instance document are not found in the default schema, the document will not validate.If
AllowXmlAttributes
is set tofalse
and the instance document contains Xml attributes, the validation engine will report an error.
When a schema imports the Xml namespace without a location.
If
AllowXmlAttributes
is set totrue
(default) and the instance document contains Xml attributes, the validation engine will use the default Xml namespace schema for validation. If Xml attributes used in the instance document are not found in the default schema, the document will not validate.If
AllowXmlAttributes
is set tofalse
and the instance document contains Xml attributes that are not explicitly allowed by the schema, the validation engine will report an error.If
AllowXmlAttributes
is set tofalse
and the instance document contains Xml attributes that are explicitly allowed by the schema, the validation engine will validate the attributes the same way it validates other attributes using the default Xml namespace schema.
When a schema imports a custom Xml namespace schema with a custom schemaLocation.
If
AllowXmlAttributes
is set totrue
(default) and the instance document contains Xml attributes, the validation engine will use the custom Xml namespace schema for validation. If Xml attributes used in the instance document are not found in the specified schema, the document will not validate.If
AllowXmlAttributes
is set tofalse
and the instance document contains Xml attributes that are not explicitly allowed by the schema, the validation engine will report an error.If
AllowXmlAttributes
is set tofalse
and the instance document contains Xml attributes that are explicitly allowed by the schema, the validation engine will validate the attributes the same way it validates other attributes using specified Xml namespace schema.
When a schema defines an xml:* attribute with use="required".
- The following applies when
AllowXmlAttributes
is set totrue
andfalse
. Required xml:* attributes should be treated as other attributes and validated using the specified Xml namespace schema.
- The following applies when
When a schema defines an xml:* attribute with use="prohibited".
- The following applies when
AllowXmlAttributes
is set totrue
andfalse
. If an instance document contains xml:* attributes that are explicitly prohibited by the schema, the validation engine will report an error.
- The following applies when
When a schema specifies an attribute wildcard.
If an instance document contains an Xml attribute and the schema specifies an attribute wildcard with processContents either omitted or set to "strict", the validation engine will use the Xml namespace schema present in the XmlSchemaSet. If no Xml namespace schema is specified, the validation engine will behave as follows.
If
AllowXmlAttributes
is set totrue
, the validation engine will use the default Xml namespace schema to perform validation.If
AllowXmlAttributes
is set tofalse
, the validation engine will report an error.If an instance document contains an Xml attribute and the schema specifies an attribute wildcard with processContents set to "skip", the validation engine will skip attribute validation.
If an instance document contains an Xml attribute and the schema specifies an attribute wildcard with processContents set to "lax", the validation engine will use the Xml namespace schema present in the XmlSchemaSet. If no Xml namespace schema is specified, the validation engine will behave as follows.
If
AllowXmlAttributes
is set totrue
, the validation engine will use the default Xml namespace schema to perform validation.If
AllowXmlAttributes
is set tofalse
, attribute validation will not be performed.
When validating simple types.
- When
AllowXmlAttributes
is set totrue
(default), Xml attributes will be allowed on elements of simple types.
- When