IDataContractSurrogate.GetReferencedTypeOnImport 方法

public:
 Type ^ GetReferencedTypeOnImport(System::String ^ typeName, System::String ^ typeNamespace, System::Object ^ customData);

public Type GetReferencedTypeOnImport(string typeName, string typeNamespace, object customData);

abstract member GetReferencedTypeOnImport : string * string * obj -> Type

Public Function GetReferencedTypeOnImport (typeName As String, typeNamespace As String, customData As Object) As Type

参数

返回

Type要用于引用的类型。

示例

以下示例演示方法的 GetReferencedTypeOnImport 实现。

public Type GetReferencedTypeOnImport(string typeName,
    string typeNamespace, object customData)
{
    Console.WriteLine("GetReferencedTypeOnImport invoked");
    // This method is called on schema import.
    // If a PersonSurrogated data contract is
    // in the specified namespace, do not create a new type for it
    // because there is already an existing type, "Person".
    Console.WriteLine( "\t Type Name: {0}", typeName);

    if (typeName.Equals("PersonSurrogated") )
    {
        Console.WriteLine("Returning Person");
        return typeof(Person);
    }
    return null;
}

Public Function GetReferencedTypeOnImport(ByVal typeName As String, _
    ByVal typeNamespace As String, ByVal customData As Object) As Type _
    Implements IDataContractSurrogate.GetReferencedTypeOnImport
    Console.WriteLine("GetReferencedTypeOnImport invoked")
    ' This method is called on schema import.
    ' If a PersonSurrogated data contract is 
    ' in the specified namespace, do not create a new type for it 
    ' because there is already an existing type, "Person".
    Console.WriteLine(vbTab & "Type Name: {0}", typeName)

    'If typeNamespace.Equals("http://schemas.datacontract.org/2004/07/DCSurrogateSample") Then
    If typeName.Equals("PersonSurrogated") Then
        Console.WriteLine("Returning Person")
        Return GetType(Person)
    End If
    'End If
    Return Nothing

End Function

注解

Null 如果不存在用于表示架构类型的 CLR 类型，则应返回该类型。 这将导致在架构导入期间生成新类型。