/ Published in: JavaScript
Be default, ExtJS does not provide any special handling to display an empty string in the dropdown list of a ComboBox. In HTML, an empty DIV element as no height. So, in the dropdown list, the "empty string" option is displayed as a thin bar, almost unselectable.
This snipped force the empty string to be *rendered* as " ".
This snipped force the empty string to be *rendered* as " ".