Filtering
The built-in filtering functionality enables the user to filter the displayed DropDownTree items by their text value.
By default, filtering is disabled and can be performed over string
values only—that is, either the widget data has to be an array of strings or configured in the data-text-field
option over the field.
The DropDownTree supports the following filter values:
startswith
endswith
contains
The following example demonstrates how to enable the startsWith filtering
within the DropDownTree.