DataContractResolver.TryResolveType Methode

Definition

Namespace:
System.Runtime.Serialization
Assemblys:
System.Runtime.Serialization.dll, System.Runtime.Serialization.Xml.dll
Assemblys:
netstandard.dll, System.Runtime.Serialization.Xml.dll
Assembly:
System.Runtime.Serialization.Xml.dll
Assembly:
System.Runtime.Serialization.dll
Assembly:
netstandard.dll
Quelle:
DataContractResolver.cs
Quelle:
DataContractResolver.cs
Quelle:
DataContractResolver.cs
Quelle:
DataContractResolver.cs
Quelle:
DataContractResolver.cs

Überschreiben Sie diese Methode, um einen Datenvertragstyp während der Serialisierung einem xsi:type Namen und Namespace zuzuordnen.

public:
 abstract bool TryResolveType(Type ^ type, Type ^ declaredType, System::Runtime::Serialization::DataContractResolver ^ knownTypeResolver, [Runtime::InteropServices::Out] System::Xml::XmlDictionaryString ^ % typeName, [Runtime::InteropServices::Out] System::Xml::XmlDictionaryString ^ % typeNamespace);
public abstract bool TryResolveType(Type type, Type declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver, out System.Xml.XmlDictionaryString typeName, out System.Xml.XmlDictionaryString typeNamespace);
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")]
public abstract bool TryResolveType(Type type, Type? declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver, out System.Xml.XmlDictionaryString? typeName, out System.Xml.XmlDictionaryString? typeNamespace);
public abstract bool TryResolveType(Type type, Type? declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver, out System.Xml.XmlDictionaryString? typeName, out System.Xml.XmlDictionaryString? typeNamespace);
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")]
public abstract bool TryResolveType(Type type, Type? declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver, out System.Xml.XmlDictionaryString? typeName, out System.Xml.XmlDictionaryString? typeNamespace);
abstract member TryResolveType : Type * Type * System.Runtime.Serialization.DataContractResolver * XmlDictionaryString * XmlDictionaryString -> bool
[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")>]
abstract member TryResolveType : Type * Type * System.Runtime.Serialization.DataContractResolver * XmlDictionaryString * XmlDictionaryString -> bool
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")>]
abstract member TryResolveType : Type * Type * System.Runtime.Serialization.DataContractResolver * XmlDictionaryString * XmlDictionaryString -> bool
Public MustOverride Function TryResolveType (type As Type, declaredType As Type, knownTypeResolver As DataContractResolver, ByRef typeName As XmlDictionaryString, ByRef typeNamespace As XmlDictionaryString) As Boolean

Parameter

type
Type

Der Typ, der zugeordnet werden soll.

declaredType
Type

Der im Datenvertrag deklarierte Typ.

knownTypeResolver
DataContractResolver

Der bekannte Typlöser.

typeName
XmlDictionaryString

Der Name "xsi:type".

typeNamespace
XmlDictionaryString

Der xsi:type-Namespace.

Gibt zurück

Boolean

truewenn die Zuordnung erfolgreich war; andernfalls . false

Attribute
RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

Beispiele

Das folgende Beispiel zeigt eine Implementierung der TryResolveType Methode.

// Used at serialization
// Maps any Type to a new xsi:type representation
public override bool TryResolveType(Type type, Type declaredType, DataContractResolver knownTypeResolver, out XmlDictionaryString typeName, out XmlDictionaryString typeNamespace)
{
    string name = type.Name;
    string namesp = type.Namespace;
    typeName = new XmlDictionaryString(XmlDictionary.Empty, name, 0);
    typeNamespace = new XmlDictionaryString(XmlDictionary.Empty, namesp, 0);
    if (!dictionary.ContainsKey(type.Name))
    {
        dictionary.Add(name, typeName);
    }
    if (!dictionary.ContainsKey(type.Namespace))
    {
        dictionary.Add(namesp, typeNamespace);
    }
    return true;
}

Hinweise

Wenn Sie die bekannte Typauflösungslogik in Ihrer Implementierung verwenden möchten, wird ein Verweis darauf als knownTypeResolver Parameter übergeben.

Gilt für: