0 out of 2 rated this helpful - Rate this topic

DataContractResolver.TryResolveType Method

.NET Framework 4

.NET Framework 4.5

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)

Syntax

C++

Copy

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.

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.

Examples

The following example shows an implementation of the TryResolveType(Type, Type, DataContractResolver, XmlDictionaryString, XmlDictionaryString) method.

Copy


// 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;
}

Version Information

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Platforms

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.

Reference

DataContractResolver Class

System.Runtime.Serialization Namespace

Did you find this helpful? Yes No

Not accurate

Not enough depth

Need more code examples

(1500 characters remaining)

Community Content Add

FAQ