DataContractResolver.TryResolveType Method

Reference

Definition

Namespace:: System.Runtime.Serialization

Assembly:: System.Runtime.Serialization.Xml.dll

Assembly:: System.Runtime.Serialization.dll

Assembly:: netstandard.dll

Source:: DataContractResolver.cs

Source:: DataContractResolver.cs

Source:: DataContractResolver.cs

Important

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Override this method to map a data contract type to an xsi:type name and namespace during serialization.

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);

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

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

Parameters

type: Type

The type to map.

declaredType: Type

The type declared in the data contract.

knownTypeResolver: DataContractResolver

The known type resolver.

typeName: XmlDictionaryString

The xsi:type name.

typeNamespace: XmlDictionaryString

The xsi:type namespace.

Returns

Boolean

true if mapping succeeded; otherwise, false.

Examples

The following example shows an implementation of the TryResolveType method.

// 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;
}

Remarks

If you want to use the known type resolution logic inside your implementation, a reference to it is passed in as the knownTypeResolver parameter.

Applies to

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