Managed Class member varible from managed struct

问题

I need help in making member variable for a managed class of managed struct ... i tried to fix this but the error didn't disappear till i made that class non managed by removing "ref" . you may see this picture to see the class and the struct http://tinypic.com/view.php?pic=149mgie&s=8

public ref struct RectResult
{
    int x;
    int y;
    int width;
    int height;
};

public ref  class GullotinePackedBin
{
private:
    int width;
    int height;
    vector<RectResult> packedRectangles;
}

来源：https://stackoverflow.com/questions/30620421/managed-class-member-varible-from-managed-struct