DataContractResolver.TryResolveType Метод

Определение

Пространство имен:

System.Runtime.Serialization

Сборки:

netstandard.dll, System.Runtime.Serialization.Xml.dll

Исходный код:

DataContractResolver.cs

Переопределите этот метод, чтобы сопоставить тип контракта данных с xsi:type именем и пространством имен во время сериализации.

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);

[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);

[<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

Public MustOverride Function TryResolveType (type As Type, declaredType As Type, knownTypeResolver As DataContractResolver, ByRef typeName As XmlDictionaryString, ByRef typeNamespace As XmlDictionaryString) As Boolean

Параметры

type

Type

Тип для сопоставления.

declaredType

Type

Тип, объявленный в контракте данных.

knownTypeResolver

DataContractResolver

Распознаватель известных типов.

typeName

XmlDictionaryString

Имя xsi:type.

typeNamespace

XmlDictionaryString

Пространство имен xsi:type.

Возвращаемое значение

Boolean

true Значение , если сопоставление выполнено успешно; falseв противном случае .

Атрибуты

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

Примеры

В следующем примере показана реализация TryResolveType метода.

// 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;
}

Комментарии

Если вы хотите использовать логику разрешения известных типов внутри реализации, ссылка на нее передается в качестве knownTypeResolver параметра.