print properties of a class

Question

I have a little console program that prints out properties for a given class.

It works, but I was wondering if there's a way of doing this without having to a instantiate new class.

I'm asking because I want to get the class name and all the class properties of every class in my project.

If I could do that without having to instantiate each class, it would really cut down on the programming.

namespace ObjectViewer
{
    class PropertyLister
    {
        static void Main(string[] args)
        {
            Programmer programmer = new Programmer() { Id = 123, Name = "Joe", Job = "Programmer" };

            printProperties(programmer);

            Console.ReadLine();
        }

        public static void printProperties(Object jsonObject)
        {
            JObject json = JObject.FromObject(jsonObject);
            Console.WriteLine("Classname: {0}\n", jsonObject.ToString());
            Console.WriteLine("{0,-20} {1,5}\n", "Name", "Value");
            foreach (JProperty property in json.Properties()) { 
                Console.WriteLine("{0,-20} {1,5:N1}",  property.Name, property.Value);
            }
        }
    }
}

If you don't need values, have you tried just `Type.GetProperties()`? — Jon Skeet, Dec 15 '15 at 15:59

score 2 · Accepted Answer · answered Dec 15 '15 at 15:59

2

You can use reflection:

class ClassA
{
    public string NameField;

    public string NameProperty { get; set; }
}

public class Program
{
    public static void Main()
    {
        Type t = typeof(ClassA);

        foreach(var field in t.GetFields())
        {
            Console.WriteLine(field.Name);
        }

        foreach(var prop in t.GetProperties())
        {
            Console.WriteLine(prop.Name);
        }
    }
}

This will output:

NameField
NameProperty

answered Dec 15 '15 at 15:59

Marco Fatica

937
7
12

Thanks! I didn't even know you could do this! – SkyeBoniwell Dec 15 '15 at 16:02
1

@999cm999 yep! reflection is very powerful. i recommend reading the MSDN docs for it as there is a lot you can do – Marco Fatica Dec 15 '15 at 16:03

score 0 · Answer 2 · edited Dec 15 '15 at 16:03

0

You can get all the properties of a type with the .GetProperties() method for a given type.

edited Dec 15 '15 at 16:03

Patrick Hofman

153,850
22
249
325

answered Dec 15 '15 at 15:59

Lewis Taylor

673
3
13

print properties of a class

2 Answers2