DataContractResolver.ResolveName 方法
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
重写此方法，以在反序列化期间将指定的 xsi:type 名称和命名空间映射到数据协定类型。
public:
abstract Type ^ ResolveName(System::String ^ typeName, System::String ^ typeNamespace, Type ^ declaredType, System::Runtime::Serialization::DataContractResolver ^ knownTypeResolver);public abstract Type ResolveName(string typeName, string typeNamespace, Type declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver);[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed.")]
[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")]
public abstract Type? ResolveName(string typeName, string? typeNamespace, Type? declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver);public abstract Type? ResolveName(string typeName, string? typeNamespace, Type? declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")]
public abstract Type? ResolveName(string typeName, string? typeNamespace, Type? declaredType, System.Runtime.Serialization.DataContractResolver knownTypeResolver);abstract member ResolveName : string * string * Type * System.Runtime.Serialization.DataContractResolver -> Type[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed.")>]
[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")>]
abstract member ResolveName : string * string * Type * System.Runtime.Serialization.DataContractResolver -> Type[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("Data Contract Serialization and Deserialization might require types that cannot be statically analyzed. Make sure all of the required types are preserved.")>]
abstract member ResolveName : string * string * Type * System.Runtime.Serialization.DataContractResolver -> TypePublic MustOverride Function ResolveName (typeName As String, typeNamespace As String, declaredType As Type, knownTypeResolver As DataContractResolver) As Type参数
- typeName
- String
要 xsi:type 映射的名称。
- typeNamespace
- String
要映射的 xsi:type 命名空间。
- declaredType
- Type
数据协定中声明的类型。
- knownTypeResolver
- DataContractResolver
已知类型解析程序。
返回
名称和命名空间映射到的类型 xsi:type 。
- 属性
示例
以下示例演示方法的 ResolveName 实现。
// Used at deserialization
// Allows users to map xsi:type name to any Type
public override Type ResolveName(string typeName, string typeNamespace, Type declaredType, DataContractResolver knownTypeResolver)
{
XmlDictionaryString tName;
XmlDictionaryString tNamespace;
if (dictionary.TryGetValue(typeName, out tName) && dictionary.TryGetValue(typeNamespace, out tNamespace))
{
return this.assembly.GetType(tNamespace.Value + "." + tName.Value);
}
else
{
return null;
}
}
注解
如果要在实现中使用已知的类型解析逻辑，则以参数的形式 knownTypeResolver 传入对它的引用。
