DropDownGidBuilderImpl.expression

T expression(gtk.expression.Expression propval)

Set expression property.

Parameters

propval An expression to evaluate to obtain strings to match against the search term. See property@Gtk.DropDown:enable-search for how to enable search. If [gtk.drop_down.DropDown.factory] is not set, the expression is also used to bind strings to labels produced by a default factory.

Returns

Builder instance for fluent chaining