How do you set the default value for the combo box to be a blank so the user is force to make a choice from the dropdown list. I can't make the first choice in the list be blank except for using " " quotes marks. I want to check the value to not be blank before the user can exit the form.
Free Guide: Managing storage for virtual environments
Complete a brief survey to get a complimentary 70-page whitepaper featuring the best methods and solutions for your virtual environment, as well as hypervisor-specific management advice from TechTarget experts. Don’t miss out on this exclusive content!