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DataContractResolver.TryResolveType Method

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

Namespace:  System.Runtime.Serialization
Assembly:  System.Runtime.Serialization (in System.Runtime.Serialization.dll)

public abstract bool TryResolveType(
	Type type,
	Type declaredType,
	DataContractResolver knownTypeResolver,
	out XmlDictionaryString typeName,
	out XmlDictionaryString typeNamespace
)

Parameters

type
Type: System.Type
The type to map.
declaredType
Type: System.Type
The type declared in the data contract.
knownTypeResolver
Type: System.Runtime.Serialization.DataContractResolver
The known type resolver.
typeName
Type: System.Xml.XmlDictionaryString%
The xsi:type name.
typeNamespace
Type: System.Xml.XmlDictionaryString%
The xsi:type namespace.

Return Value

Type: System.Boolean
true if mapping succeeded; otherwise, false.

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

The following example shows an implementation of the TryResolveType(Type, Type, DataContractResolver, XmlDictionaryString, XmlDictionaryString) 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;
}


.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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