MVC :: Calling A Select List Item?

I have created the following select list item on a controller. code goes here........

select new SelectListItem
{
Value = c.Status_ID,
Text = c.Status_Description
};

And i made the required modification to the view and the select list was displayed successfully.But i faced the following two problems:-

1. i need to use the same select list in more than one controller , so for now i have to insert the same code in each controller to add the select list, so is there a way to define this select list in one place and then reuse it in all the related controllers

2. when i select a new value from the select list and i click on save button , the old value for the list will still be displayed ,and also no effect to the DB will be made.