hi

I want to have something (datatype/interface../class) which can accept any kind of data e.g (datatable,dataset,datareader,dataview...) and i shuld be able to bind that with the checkbox list

IEnumerable interface or one of its decendants.

Grz, Kris. 

HI

can u plz elaborate on this

Well if you take a look at what a datatable or so implements, which you can use to bind to a checkboxlist, they implement IEnumerable or one of its decendants so if you want to create something specifically you can also use that same interface to build upon.

Grz, Kris.