maybe this microsoft tutorial will help???

um that link sucks.

but to add an item its something like

comboBoxID.Items.Add("text","value");

It's the same way in J#.

It's the same way, not the same syntax. Sorry, I should have been more clear. The property in J# is called get_Items() to account for language details. It's always a good idea to look for differences in classes for the different .NET languages on MSDN, because if the feature you want is supported by the framework itself, the language will support it too, and the method for using it will be comparable.