Brilliant - that's the one I was looking for, thanks. Rog

Excellent, thank you. I already have an 'Arthur' to hang things off. So, to do the dynamic bits, I can just adjust the string or use Arthur.FindControl("x") afterwards to adjust it. It's these things like not knowing about LiteralControl which are the 'things you don't know you don't know' that make forums like this so worthwhile! Thanks again. Rog

That's sort of what I'm after - I didn't think of deriving my class from the library - seems a roundabout way of resolving the function names though. What I'm after really is a way of defining functions in the same way as you would, for example, the 'sin()' function as I'd much rather use: result = sin(pi*4); then result = rog.sin(pi*4); The library doesn't have any actual data (or if it is, it'll be static) and I don't intend to instantiate an instance of it. I still have this nagging feeling that I just haven't 'got the hang' of C# yet...! Rog

The reason is more than likely its not in a form tag. Paste this code. private void Page_Load(object sender, System.EventArgs e) { // Put user code to initialize the page here Table t = new Table(); TableRow row = new TableRow(); TableCell cell = new TableCell(); ListBox lst = new ListBox(); lst.Style.Add("background-color", "InfoBackground"); lst.Style.Add("color", "InfoText"); lst.ID = "PickerBox"; lst.AutoPostBack = true; lst.Attributes.Add("height", "200px"); lst.SelectedIndexChanged += new System.EventHandler(HavePicked); lst.Items.Add(new ListItem("A")); lst.Items.Add(new ListItem("B")); System.Web.UI.HtmlControls.HtmlForm f = (System.Web.UI.HtmlControls.HtmlForm)FindControl( "Form1" ); cell.Controls.Add( lst ); row.Cells.Add( cell ); t.Rows.Add( row ); f.Controls.Add( t ); } private void HavePicked( object sender, System.EventArgs e ) { int i=0; } Also if you dont have any items in the list box the event wont fire because you cant change the index. Maybe this hepls. Nick 1 line of code equals many bugs. So don't write any!!

Why not just check your home e-mail from work? Or vice versa? I don't know whether it's just the light but I swear the database server gives me dirty looks everytime I wander past. -Chris Maunder Microsoft has reinvented the wheel, this time they made it round. -Peterchen on VS.NET

I looked there. Really I did. I wasn't there. Just like the 'K' key wasn't there when I had a user call once complaining that it was missing from their keyboard and I explained it was between the 'J' and the 'L' and they went away quietly... Thanks! Rog