CODEWITHSUNDEEP
c#
Abdur Rahim
Abdur Rahim

Reputation: 4021

Failing to get fields of an object

Simple c# console application to check how to get fields of an unknown object.

public class A
{
    public int id;
    public string name;
    public string desc;
}

class Program
{
    static void Main(string[] args)
    {
        A a = new A();
        getProp(a);
        Console.ReadKey();
    }

    static object getProp(object o)
    {
        Type type = o.GetType();
        PropertyInfo[] pros = type.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);

        //Do Something
        return null;
    }
}

I am not getting any fields. pros has no value inside it. I have to get the field names of the object o.

Upvotes: 0

Views: 278

Answers (1)

Yair Nevet
Yair Nevet

Reputation: 13003

The members which you're trying to fetch are not properties, but fields. Try the following:

var fields = typeof(A).GetFields();

Or:

static FieldInfo[] GetFields(object o)
{
    Type type = o.GetType();
    FieldInfo[] fields = type.GetFields();
    
    return fields;
}

And in order to grab the object's fields values:

var fields = GetFields(obj);
foreach(var field in fields)
{
  Console.WriteLine(field.GetValue(obj));
}

From MSDN:

Type.GetFields Method

Returns all the public fields of the current Type.

Upvotes: 1

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