DataContractResolver.TryResolveType Metoda

Definice

Obor názvů:

System.Runtime.Serialization

Sestavení:

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

Zdroj:

DataContractResolver.cs

Přepsat tuto metodu mapování datového typu kontraktu xsi:type na název a obor názvů během serializace.

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

Parametry

type

Type

Typ, který se má mapovat.

declaredType

Type

Typ deklarovaný v datovém kontraktu.

knownTypeResolver

DataContractResolver

Známý překladač typů.

typeName

XmlDictionaryString

Název xsi:type.

typeNamespace

XmlDictionaryString

Obor názvů xsi:type.

Návraty

Boolean

truepokud mapování proběhlo úspěšně; v opačném případě . false

Atributy

RequiresDynamicCodeAttribute RequiresUnreferencedCodeAttribute

Příklady

Následující příklad ukazuje implementaci TryResolveType metody.

// 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;
}

Poznámky

Pokud chcete ve své implementaci použít známou logiku překladu typů, předá se jako parametr odkaz.knownTypeResolver