I need a method that will be able to loop through every static property in a static class, and combine these to a string with json syntax, where key name would equal to Property name, and key value would be the value of the property.
So the result would be a string with value:
{ "StaticPropertyName_string": "string_value_of_this_property", "StaticPropertyName_int": 34 }
I have a working method that successfully does the opposite - takes a json and maps data to static fields. But can't figure out how to do it in reverse
public static void MapProfileToJson(JToken source) //// source = plain json string
{
var destinationProperties = typeof(Fields)
.GetProperties(BindingFlags.Public | BindingFlags.Static);
foreach (JProperty prop in source)
{
var destinationProp = destinationProperties
.SingleOrDefault(p => p.Name.Equals(prop.Name, StringComparison.OrdinalIgnoreCase));
var value = ((JValue)prop.Value).Value;
if (typeof(Fields).GetProperty(prop.Name) != null)
destinationProp.SetValue(null, Convert.ChangeType(value, destinationProp.PropertyType));
else
Console.WriteLine("(!) property \"" + prop.Name + "\" is not found in class... skip");
}
}
Example static class:
public static class Fields
{
public static bool BoolField { get; set; }
public static string StringField { get; set; }
public static int IntField { get; set; }
public static double DoubleField { get; set; }
}
p.s. Key value pairs saved in string, could be wrapped at the end like
ResultString = "{ " + resultString + " }";
C# .NET 4.7.2 (console app)
As others have said, a static class is not a good design here.
However, it is possible to map it back to JSON with some simple reflection:
public static JObject MapStaticClassToJson(Type staticClassToMap)
{
var result = new JObject();
var properties = staticClassToMap.GetProperties(BindingFlags.Public | BindingFlags.Static);
foreach (PropertyInfo prop in properties)
{
result.Add(new JProperty(prop.Name, prop.GetValue(null, null)));
}
return result;
}
I think it would be nice to have some simple code to assign json properties to a static class properties too. I created this code using @RichardDeeming answer
public static void MapStaticClassFromJson(string json, Type staticClassToMap)
{
var jsonObject = JObject.Parse(json);
var properties = staticClassToMap.GetProperties(BindingFlags.Public | BindingFlags.Static);
foreach (PropertyInfo prop in properties)
prop.SetValue(null, Convert.ChangeType(jsonObject[prop.Name], prop.PropertyType, CultureInfo.CurrentCulture), null);
}
test
MapStaticClassFromJson(json,typeof(Data));
Console.WriteLine(Data.StaticPropertyName_int);
Console.WriteLine(Data.StaticPropertyName_string);
result
34
string_value_of_this_property