>Hi all,
>
>Frequently, my combo boxes are a list of codes that I use to set a filter. The codes are stored in a table along with their description. So for the recordsource, I use SQL:
>
>SELECT code, desc FROM codetable INTO CURSOR tmp ORDER BY code
>
>This works great if I want to force them to choose a code. But in some cases, I want them to be able to set the filter to everything. So, I want to put in the option to choose "". I don't, however, want to have "" as a code, since the codes are user-editable and they're likely to delete it. (Yeah, I know, I could get around that, but it makes things much more complicated)
>
>Is there an easy way to add the blank choice? I tried setting the SQL, then in the init doing THIS.AddItem(""), but I get an error. I think it was data type mismatch, but this was last night, so I don't remember for sure.
>

After this SQL, add this

use (dbf()) again alias tmp2 in 0 && make cursor r/w
sele tmp2
append blank
repl tmp2.desc with "(everything)" && nicer description
use
sele tmp

Though, this is not a "" in the first column, it is space(len(code)), so you should trim it later when you use it as a parameter for some other SQL.

HTH