I’m trying to validate an XML file with XSD, but I get a “Could not find schema information for the element ‘xxx’” for each element and attribute.
My C# code is:
public ReadeXmlFile(string FilePath)
{
var settings = new XmlReaderSettings
{
IgnoreComments = true,
ValidationType = ValidationType.Schema,
CheckCharacters=true,
ValidationFlags= XmlSchemaValidationFlags.ReportValidationWarnings
};
settings.ValidationEventHandler += settings_ValidationEventHandler;
var xsdReader = new XmlTextReader("KeyEmFileSchema.xsd");
settings.Schemas.Add(null, xsdReader);
using (var reader = XmlTextReader.Create(FilePath, settings))
{
while (reader.Read()){}
}
}
void settings_ValidationEventHandler(object sender, ValidationEventArgs e)
{
Debug.WriteLine(e.Severity + " - " + e.Message);
}
My XML file:
<?xml version="1.0" encoding="utf-16"?>
<keyem description="test"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xsi:noNamespaceSchemaLocation="http://tempuri.org/KeyEmFileSchema.xsd"
>
<layout type="keyboard" height="300" width="300">
<groupp text="rad 1">
<key color="Black" macro="{ESC}10{ESC}43{MOUSERESET}" text="Ordi-\nnarie"/>
<key color="Gray" macro="{ESC}10{ESC}B0{MOUSERESET}" text="Släck\nskärm"/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n1"/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n2" icon="dfkhfkjsdhfkjdsf">
<shift color="Blue" macro="{ESC}1C{ESC}81{MOUSERESET}" text="Annan Skärm"/>
</key>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n3"/>
<empty/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n4"/>
</groupp>
<group text="rad 2">
<key color="Black" macro="{ESC}10{ESC}43{MOUSERESET}" text="Ordi-\nnarie"/>
<key color="Gray" macro="{ESC}10{ESC}B0{MOUSERESET}" text="Släck\nskärm"/>
<group color ="Blue" text="test">
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n1"/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n2"/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n3"/>
</group>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n1"/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n2"/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n3"/>
<empty/>
<key color="Gray" macro="{ESC}1B{ESC}81{MOUSERESET}" text="Skärm\n4"/>
</group>
</layout>
</keyem>
My XSD file
<?xml version="1.0" encoding="utf-16"?>
<xs:schema id="FileSchema"
targetNamespace="http://tempuri.org/KeyEmFileSchema.xsd"
elementFormDefault="qualified"
xmlns="http://tempuri.org/KeyEmFileSchema.xsd"
xmlns:mstns="http://tempuri.org/KeyEmFileSchema.xsd"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
>
<xs:annotation>
<xs:documentation xml:lang="sv-se">Definition av layout</xs:documentation>
</xs:annotation>
<!--Definition av attribut-->
<xs:attribute name="description" type="xs:string"/>
<xs:attribute name="text" type="xs:string"/>
<xs:attribute name="height" type="xs:positiveInteger"/>
<xs:attribute name="width" type="xs:positiveInteger"/>
<xs:attribute name="type" type="LayoutTypeSet" default="keyboard"/>
<xs:attribute name="macro" type="xs:string"/>
<xs:attribute name="icon" type="xs:base64Binary"/>
<xs:attribute name="color" type="ColorType"/>
<!--Definition av attributgrupp-->
<xs:attributeGroup name="ShiftKeyAttributeGroup">
<xs:attribute ref="color" use="optional"/>
<xs:attribute ref="macro" use="optional"/>
<xs:attribute ref="text" use="required"/>
<xs:attribute ref="icon" use="optional"/>
</xs:attributeGroup>
<!--Definition av root-->
<xs:element name="keyem">
<xs:complexType>
<xs:sequence>
<xs:element name="layout" type="LayoutType" minOccurs="0" maxOccurs="1"/>
</xs:sequence>
<xs:attribute ref="description" use="optional"/>
</xs:complexType>
</xs:element>
<!--Definition av komplexa typer-->
<xs:complexType name="GroupKeyType">
<xs:choice maxOccurs="unbounded">
<xs:element name="group" type="GroupType" minOccurs="0" maxOccurs="unbounded"/>
<xs:element name="key" type="KeyType" minOccurs="0" maxOccurs="unbounded"/>
</xs:choice>
</xs:complexType>
<xs:complexType name="LayoutType">
<xs:choice maxOccurs="unbounded">
<xs:element name="group" type="GroupType" minOccurs="0" maxOccurs="unbounded"/>
<xs:element name="key" type="KeyType" minOccurs="0" maxOccurs="unbounded"/>
</xs:choice>
<xs:attribute ref="type" use="required"/>
<xs:attribute ref="height" use="optional"/>
<xs:attribute ref="width" use="optional"/>
</xs:complexType>
<xs:complexType name="GroupType">
<xs:choice maxOccurs="unbounded">
<xs:element name="group" type="GroupType" minOccurs="0" maxOccurs="unbounded"/>
<xs:element name="key" type="KeyType" minOccurs="0" maxOccurs="unbounded"/>
<xs:element name="empty" type="EmptyType" minOccurs="0" maxOccurs="unbounded"/>
</xs:choice>
<xs:attribute ref="text" use="required"/>
<xs:attribute ref="color" use="optional"/>
</xs:complexType>
<xs:complexType name="EmptyType">
<xs:sequence>
<xs:element name="empty"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="ShiftType">
<xs:attributeGroup ref="ShiftKeyAttributeGroup"/>
</xs:complexType>
<xs:complexType name="KeyType">
<xs:sequence>
<xs:element name="shift" type="ShiftType" minOccurs ="0" maxOccurs="1"/>
</xs:sequence>
<xs:attributeGroup ref="ShiftKeyAttributeGroup"/>
</xs:complexType>
<!--Definition av enkla typer-->
<xs:simpleType name="ColorType">
<xs:restriction base="xs:string">
<!--Regex för att antingen matcha färg angivet på formen #rrggbb eller som är skriven i klarspråk, t.ex. "Green"-->
<xs:pattern value="\#[0-9a-fA-F]{6}|[a-zA-Z]+"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="LayoutTypeSet">
<xs:restriction base="xs:string">
<xs:enumeration value="keyboard"/>
<xs:enumeration value="list"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>
If you defined schema in the
KeyEmFileSchema.xsdfile you can useschemaLocationinstead ofnoNamespaceSchemaLocation:which defines file name (it can be with the path if required) where the definition
http://tempuri.org/KeyEmFileSchema.xsdcan be found and used. Then you can useIf you want you can additionally use
ValidationEventHandler. Without the handler you will receive exception with the information about validation errors.UPDATED: By the way after including of
xmlns="http://tempuri.org/KeyEmFileSchema.xsd"andxsi:schemaLocation="http://tempuri.org/KeyEmFileSchema.xsd KeyEmFileSchema.xsd"in the root element of your xml file you will be seen already in Visual Studio Text Editor the errors in your XML file:descriptioninkeyemelement.layoutelement which are also undeclared.grouppelement instead ofgroup.UPDATED 2: The requirement number 3: to replace
groupptogroupis clear. Because nobody commented my answer I suppose that somebody ask “what is wrong with attributes of the XML file?”. OK I have to comment this more.The problem in your XSD file is that you declare attributes as NOT a part of some simple types, attribute group or attributes of some element. You just declare some “independent” attributes and then use there per “ref” reference. It is in general possible, but this way require usage of qualified attributes. So if you make no changes in your schema the fixed version of your XML file will be following
A small remark:
<empty>element is wrong defined in your schema, so to follow the schema we have to use it like<empty><empty/></empty>.Another version of possible changes (which you will probably prefer) is to place all attributes in the definition of elements or attribute group. Usage of simple types in your case seems me not needed. So the fixed version of the schema can be following:
If we save the new schema in the file
KeyEmFileSchema1.xsdthenKeyEmFileSchema.xmlfile can be almost the same as you have before: