How can I use "public variables" in a same or a different namespace but in a same application?

for example:

1st namespace in a BookStore web application

```
namespace BookStore
{
    public partial class index : System.Web.UI.Page
    {
        public string command; // the public variable declared

```

2nd namespace, in the Same BookStore application

```
namespace Admin.BookStore // here i try to include the BookStore namespace..
{
    public partial class admin : System.Web.UI.Page
    {
        void access()
        {
            command = "something text" ;

```

Here I think that `command` should be seen in the intellisense. I think because it was a public variable, but it doesn't show up.