Errore durante la convalida di un file XML con XSD

https://stackoverflow.com/questions/3828924

26-09-2019
|

Domanda

Sto cercando di convalidare un file XML con XSD, ma ottengo un " Impossibile trovare informazioni sullo schema per l'elemento 'xxx' " per ogni elemento e attributo.

Il mio codice C # è:

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);
}

Il mio file XML:

<?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>

file XSD mio

<?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>

Soluzione

Se è stato definito lo schema nel file KeyEmFileSchema.xsd è possibile utilizzare al posto di schemaLocation noNamespaceSchemaLocation:

<keyem description="test"
      xmlns="http://tempuri.org/KeyEmFileSchema.xsd"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
      xmlns:xsd="http://www.w3.org/2001/XMLSchema"
      xsi:schemaLocation="http://tempuri.org/KeyEmFileSchema.xsd KeyEmFileSchema.xsd"
>

che definisce il nome del file (può essere con il percorso se necessario) dove il http://tempuri.org/KeyEmFileSchema.xsd definizione può essere trovato e usato. Quindi è possibile utilizzare

XmlReaderSettings settings = new XmlReaderSettings ();
settings.ValidationType = ValidationType.Schema;
settings.IgnoreWhitespace = true;
settings.IgnoreComments = true;
settings.ValidationFlags = XmlSchemaValidationFlags.ProcessSchemaLocation;

XmlReader reader = XmlReader.Create (xmlFilePath, settings);

Se si vuole si può inoltre utilizzare ValidationEventHandler. Senza che il conduttore si riceverà eccezione con le informazioni sugli errori di convalida.

AGGIORNAMENTO : A proposito dopo l'inclusione di xmlns="http://tempuri.org/KeyEmFileSchema.xsd" e xsi:schemaLocation="http://tempuri.org/KeyEmFileSchema.xsd KeyEmFileSchema.xsd" nell'elemento principale del vostro file XML che si si vedrà già in Visual Studio Editor di testo gli errori nella vostra file XML:

Uso della description attributo sommerso elemento keyem.
L'utilizzo di tutti gli attributi di elemento layout che sono anche non dichiarato.
L'utilizzo di elemento groupp invece di group.

AGGIORNAMENTO 2 : Il numero requisito 3: sostituire groupp a group è chiara. Perché nessuno ha commentato la mia risposta Suppongo che qualcuno chiede "cosa c'è di sbagliato con gli attributi del file XML?". OK devo commentare questo di più.

Il problema nel file XSD è che si dichiara attributi come non una parte di alcuni tipi semplici, gruppo attributo o attributi di qualche elemento . Basta dichiarare alcuni "indipendente" attributi e poi ci usare per riferimento "ref". E 'in generale possibile, ma in questo modo richiede l'utilizzo di qualificato attributi . Quindi, se non si apportano modifiche nello schema versione fissa del file XML verrà seguito

<?xml version="1.0" encoding="utf-16"?>
<keyem xmlns="http://tempuri.org/KeyEmFileSchema.xsd"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:xsd="http://www.w3.org/2001/XMLSchema"
       xsi:schemaLocation="http://tempuri.org/KeyEmFileSchema.xsd KeyEmFileSchema.xsd"
       a:description="test" xmlns:a="http://tempuri.org/KeyEmFileSchema.xsd"
>
    <layout a:type="keyboard" a:height="300" a:width="300">
        <group a:text="rad 1">
            <key a:color="Black" a:macro="{ESC}10{ESC}43{MOUSERESET}" a:text="Ordi-\nnarie"/>
            <key a:color="Gray"  a:macro="{ESC}10{ESC}B0{MOUSERESET}" a:text="Släck\nskärm"/>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n1"/>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n2" a:icon="dfkhfkjsdhfkjdsf">
                <shift a:color="Blue"  a:macro="{ESC}1C{ESC}81{MOUSERESET}" a:text="Annan Skärm"/>
            </key>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n3"/>
            <empty><empty/></empty>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n4"/>
        </group>
        <group a:text="rad 2">
            <key a:color="Black" a:macro="{ESC}10{ESC}43{MOUSERESET}" a:text="Ordi-\nnarie"/>
            <key a:color="Gray"  a:macro="{ESC}10{ESC}B0{MOUSERESET}" a:text="Släck\nskärm"/>
            <group a:color ="Blue" a:text="test">
                <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n1"/>
                <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n2"/>
                <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n3"/>
            </group>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n1"/>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n2"/>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n3"/>
            <empty><empty/></empty>
            <key a:color="Gray"  a:macro="{ESC}1B{ESC}81{MOUSERESET}" a:text="Skärm\n4"/>
        </group>

</layout>
</keyem>

Una piccola osservazione :. Elemento <empty> è sbagliato definito nello schema, in modo da seguire lo schema che dobbiamo utilizzarlo come <empty><empty/></empty>

Un'altra versione di possibili cambiamenti (che probabilmente si preferisce) è per mettere tutti gli attributi nella definizione di elementi o gruppo di attributi . L'utilizzo di semplici tipi nel tuo caso sembra non mi serviva. Così la versione fissa dello schema può essere seguito:

<?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 attributgrupp-->
  <xs:attributeGroup name="ShiftKeyAttributeGroup">
    <xs:attribute name="color" type="ColorType"/>
    <xs:attribute name="macro" type="xs:string"/>
    <xs:attribute name="text"  type="xs:string" use="required"/>
    <xs:attribute name="icon"  type="xs:base64Binary"/>
  </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 name="description" type="xs:string"/>
    </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 name="type"   type="LayoutTypeSet" use="required"/>
    <xs:attribute name="height" type="xs:positiveInteger"/>
    <xs:attribute name="width"  type="xs:positiveInteger"/>
  </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" minOccurs="0" maxOccurs="unbounded"/>
    </xs:choice>
    <xs:attribute name="text" type="xs:string" use="required" />
    <xs:attribute name="color" type="ColorType"/>
  </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>

Se salviamo il nuovo schema nel file KeyEmFileSchema1.xsd poi lima KeyEmFileSchema.xml possiamo essere quasi la stessa che avete prima:

<?xml version="1.0" encoding="utf-16"?>
<keyem xmlns="http://tempuri.org/KeyEmFileSchema.xsd"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:xsd="http://www.w3.org/2001/XMLSchema"
       xsi:schemaLocation="http://tempuri.org/KeyEmFileSchema.xsd KeyEmFileSchema1.xsd"
       description="test"
>
    <layout type="keyboard" height="300" width="300">
        <group 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"/>
        </group>
        <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>

Altri suggerimenti

secondo il vostro schema di avere un nodo all'interno sbagliata della vostra xml:

<groupp text="rad 1">

Proprio gruppo o elemento chiave potrebbe essere inserito a quel livello.

Per quanto riguarda il vostro specifico problema tenta di utilizzare il nodo principale successiva all'interno del vostro file di schema:

<xs:schema id="FileSchema"
    elementFormDefault="qualified"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
>
...
</xs:schema>

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