public static class ReflectionExtensions
{
    public static T GetFieldValue<T>(this object obj, string name)
    {
        var bindingFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
        var field = obj.GetType().GetField(name, bindingFlags);
        if (field == null)
            field = obj.GetType().BaseType.GetField(name, bindingFlags);
        return (T)field?.GetValue(obj);
    }

    public static object InvokeMethod(this object obj, string methodName, params object[] methodParams)
    {
        var methodParamTypes = methodParams?.Select(p => p.GetType()).ToArray() ?? new Type[] { };
        var bindingFlags = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance | BindingFlags.Static;
        MethodInfo method = null;
        var type = obj.GetType();
        while (method == null && type != null)
        {
            method = type.GetMethod(methodName, bindingFlags, Type.DefaultBinder, methodParamTypes, null);
            var intfs = type.GetInterfaces();
            if (method != null)
                break;
            foreach (var intf in intfs)
            {
                method = intf.GetMethod(methodName, bindingFlags, Type.DefaultBinder, methodParamTypes, null);
                if (method != null)
                    break;
            }
            type = type.BaseType;
        }
        return method?.Invoke(obj, methodParams);
    }
}