View source for Template:CFComboBoxBP

The best practice when creating a combo box with a '''--Select One--'''is to use store-value=display-value syntax with a space as the stored value:
<pre style="white-space: pre-wrap; 
 white-space: -moz-pre-wrap; 
 white-space: -pre-wrap; 
 white-space: -o-pre-wrap; 
 word-wrap: break-word;"> =--Select One--;Option 1;Option 2;Option 3;Option 4</pre>

This ensures that the database won't store the value '''"--Select One--"''' which may cause security issues based on specific security settings.