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:
The following example demonstrates how to enable the
startsWith filtering within the DropDownTree.