c# - 使用反射将通用类字段解析器转换为 Dictionary<String, String>

Question

我很多次考虑将类的示例转换为 Dictionary<String, String>其中 key 是变量名称(类字段名称)，value 是变量当前分配的值。所以我们有一个简单的类:

public class Student
{
    public String field1;
    public Int64 field2;
    public Double field3;
    public Decimal field4;

    public String SomeClassMethod1()
    {
        ...
    }
    public Boolean SomeClassMethod2()
    {
        ...
    }
    public Int64 SomeClassMethod1()
    {
        ...
    }
}

我期望它会是什么样子:

static void Main(String[] args)
{
    Student student = new Student(){field1 = "", field2 = 3, field3 = 3.0, field4 = 4.55m};
    Dictionary<String, String> studentInDictionary = ConvertAnyToDictionary<Student>(student);
}

public Dictionary<String, String> ConvertAnyToDictionary<T>(T value) where T:class
{
...
}

关于如何实现它有什么想法吗？非常感谢您的任何建议。

编辑1: 预期结果:

studentInDictionary[0] = KeyValuePair("field1", "");
studentInDictionary[1] = KeyValuePair("field2", (3).ToString());
studentInDictionary[2] = KeyValuePair("field3", (3.0).ToString());
studentInDictionary[3] = KeyValuePair("field4", (4.55m).ToString());

Answer 1

以下是具体操作方法:

public static Dictionary<String, String> ConvertAnyToDictionary<T>(T value) where T : class {
    var fields = typeof(T).GetFields();
    var properties = typeof(T).GetProperties();

    var dict1 = fields.ToDictionary(x => x.Name, x => x.GetValue(value).ToString());
    var dict2 = properties.ToDictionary(x => x.Name, x => x.GetValue(value, null).ToString());

    return dict1.Union(dict2).ToDictionary(x => x.Key, x=> x.Value);
}

编辑:我正在计算其中的字段和属性。如果您只使用属性，则可以使用 dict2。

您可能想查看 GetFields() 和 GetProperties() 方法接收的 BindingFlags 参数。