dijit.form.ComboBoxMixin.queryExpr
dojo.require("dijit.form.ComboBox");
defined in dijit/form/ComboBox.js
dojo.data query expression pattern. ${0}
will be substituted for the user text. *
is used for wildcards. ${0}*
means "starts with", *${0}*
means "contains", ${0}
means "is"