You can try it with the example multiselect.htm
add the property autoComplete: true to the combobox.
$("#jqxComboBox").jqxComboBox({source: countries, multiSelect: true, width: 350, height: 25, autoComplete: true, theme: theme });
Type b : the list shows Bahamas, Bahrain, Bangladesh, …
Choose the first one (Bahamas).
The item added is ‘Afghanistan’ (the first in the array, not the first in the proposed list) not Bahamas
Choose another one : it’s OK.
Try with another letter : it the same thing
When you use autoComplete: true in a multiselect combobox and you choose the first item in the list, the item added is always the first in the array, not the first in the list.