The BoxSelect extension

Ext.ux.form.field.BoxSelect is a combobox, extended for more intuitive multiselect capabilities using individually labeled selected items, developed by Kevin Vaughan.

In the following screenshot you can see how multiple items are selected within a BoxSelect combobox:

In the following screenshot you can see how the selected values and the dropdowns are both configured via templates:

The following are some of the features of BoxSelect:

• Individually removable labeled items for each selected value.

• Customizable item templates, in addition to combobox's support of customizable drop-down list templates.

• Keyboard-based selection and navigation of selected values (left/right, Shift, Ctrl + A, Backspace, Delete).

• On-demand loading of values from remote stores when an unknown value is set, that is, setting queryMode = 'remote' and forceSelection = true.

• Creation of new value records for forceSelection = false.

• Configurable pinning of combo pick list for multiSelect = true.

• Configurable...