Get/Set the value of a property in arbitrary depth of an object by reflection.

ValueSetter.cs

class Reflector
{
    public static object SetValue(object target, string path, object value)
    {
        Stack<PropertyInfo> s1 = new Stack<PropertyInfo>();
        Stack<object> s2 = new Stack<object>();

        string[] properties = path.Split('.');

        Type type = target.GetType();
        object parent = target;
        for (int level = 0; level < properties.Length; ++level)
        {
            if (type == null)
                break;

            PropertyInfo property = type.GetProperty(properties[level]);
            type = property == null ? null : property.PropertyType;
            if (level < properties.Length - 1)
            {
                s1.Push(property);
                s2.Push(parent);
                parent = property.GetValue(parent, new object[] { });
            }
            else
            {
                property.SetValue(parent, value, new object[] { });
                for (int i = 0; i < s1.Count; ++i)
                {
                    PropertyInfo a = s1.Pop();
                    object b = s2.Pop();
                    a.SetValue(b, parent, new object[] { });
                    parent = b;
                }
            }
        }

        return target;
    }

    public static object GetValue(object target, string path)
    {
        string[] properties = path.Split('.');

        Type type = target.GetType();
        object parent = target;
        for (int level = 0; level < properties.Length; ++level)
        {
            if (type == null)
                break;

            PropertyInfo property = type.GetProperty(properties[level]);
            type = property == null ? null : property.PropertyType;

            if (level < properties.Length - 1)
            {
                parent = property.GetValue(parent, new object[] { });
            }
            else
            {
                return property.GetValue(parent, new object[] { });
            }
        }
        return null;
    }
}