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ExportOptions.KnownTypes Property

Gets the collection of types that may be encountered during serialization or deserialization.

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

public Collection<Type> KnownTypes { get; }

Property Value

Type: System.Collections.ObjectModel.Collection<Type>
A KnownTypes collection that contains types that may be encountered during serialization or deserialization. XML schema representations are exported for all the types specified in this collection by the XsdDataContractExporter.

The KnownTypes property is used by the DataContractSerializer to include types that can be read in an object graph (set using the DataContractSerializer.KnownTypes property).

For more information about the data contract and known types, see Data Contract Known Types.

The following example creates an instance of the ExportOptions class and adds a type to the collection returned by the KnownTypes property.

static void ExportXSD()
{
    XsdDataContractExporter exporter = new XsdDataContractExporter();
    if (exporter.CanExport(typeof(Employee)))
    {
        exporter.Export(typeof(Employee));
        Console.WriteLine("number of schemas: {0}", exporter.Schemas.Count);
        Console.WriteLine();
        XmlSchemaSet mySchemas = exporter.Schemas;

        XmlQualifiedName XmlNameValue = exporter.GetRootElementName(typeof(Employee));
        string EmployeeNameSpace = XmlNameValue.Namespace;

        foreach (XmlSchema schema in mySchemas.Schemas(EmployeeNameSpace))
        {
            schema.Write(Console.Out);
        }
    }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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