All,

I have a dropdown where we're supposed to limit the choices available, but would like the end user to be able to type into the text box to quickly find items. Unfortunately, even after setting EnableCustomValues = false, a user can start to type, get a match, then highlight some of the word and delete and it allows it to go through.

Here, you can see the dropdown

Type Al and Alpha is chosen, with the pha highlighted. Hit the backspace and you get

Which allows Al to be submitted. I've tried everything but cannot get this to function properly. Am I missing something simple or is there an issue when trying to limit input like this?

Thanks,

R