JsonConvert::DeserializeObject c++ cli 错误

Question

我正在尝试打开一个文件。json 已经将它发送到 Class。 但是我在做的时候出错了。

ref class CutAnnotationJSon
{

public:

    int index;

    String^ nomeTipo;

    double pontoX1;
    double pontoY1;

    double pontoX2;
    double pontoY2;


    double height;


    int r;
    int g;
    int b;


    int numberCut;

};

ref class PanoramicAnnotationJSon
{

public:

    int index;

    String^ nomeTipo;

    double pontoX1;
    double pontoY1;

    double pontoX2;
    double pontoY2;

    int r;
    int g;
    int b;

};

ref class DadosJSon
{

public:

    List<PanoramicAnnotationJSon^>^ panoramicAnnotation = gcnew List<PanoramicAnnotationJSon^>;

    List<CutAnnotationJSon^>^ cutAnnotation = gcnew List<CutAnnotationJSon^>;

};

使用

DadosJSon^ dadosJSon = JsonConvert::DeserializeObject<DadosJSon^>(File::ReadAllText("c:/movie.json"));

错误信息：

103  IntelliSense: more than one instance of overloaded function "Newtonsoft::Json::JsonConvert::DeserializeObject" matches the argument list:
        function template "T Newtonsoft::Json::JsonConvert::DeserializeObject<T>(System::String ^value)"
        function template "T Newtonsoft::Json::JsonConvert::DeserializeObject<T>(System::String ^value, ... cli::array<Newtonsoft::Json::JsonConverter ^, 1> ^converters)"
        argument types are: (System::String ^)  

我正在使用 Newtonsoft::Json::;

Answer 1

我无法重现问题。但是，您可以通过以下方式显式 select JsonConvert.DeserializeObject(String, JsonSerializerSettings) 重载（它可以满足您的要求）：

DadosJSon^ dadosJSon = JsonConvert::DeserializeObject<DadosJSon^>(File::ReadAllText("c:/movie.json"), (JsonSerializerSettings ^)nullptr);

为设置传递 nullptr 值等同于 JsonConvert::DeserializeObject<DadosJSon^>(File::ReadAllText("c:/movie.json"))。