Hi ! i've noticed that events from ASP.NET ususall contains this: (sender, e) what is e? one of my friend wrote me a code that i do not understand: e.command.parameters[0].value="%" The code made it possible to pull out a whole column from an sql table by changing the formel value from which he suposed to pull the info from "110" (id of a category) to '% "by using the code above. what is e ? what command stand for? "paramaters" is obviously used as an array but what does it holds usualy? thanx a lot for answering progfrog