how to manage Image source on application

Question

Sir,

     I'm window developer specified by C#. I've some difficult to develop.

I've a db table called "item" that save item images (db type: varbinary).

And  another db table "category" for the items relation. I use two ListView controls

for both category and items list source on form. So. I want to get items images specified by

categoryid and bind onto item ListView, not getting item images source so often time 

from DB Server. I'd like to get just once image source from db server onto application.

The reason of waiting for image binding onto item listview passed 

over network connection. What's the better for us, sir ?