I have a combobox storing the company name, and use can search the
company details by chooseing from the combobox.
Sometimes, the users may not know the full name of the company. So the
users may need the search function for searching the company with the
part of the company name.

Is the combobox possible allowing users to enter the whole text(not
just the first character) instead of just using the listing function
of it?

Thanks