Dialog Field Enum lookup value based on another Enum in AX 2012

Hi all,

I need information from lookup in AX 2012 dialog form.

I have already familiar about normal lookup in ax 2012.but I need some different concept from dialog lookup concept:

my requirement is I have two combo box in dialog form when I select first Enum field value second Enum field lookup based on first Enum field..

for example,

Combo box A Enum:

0: Food

1: Fruit

Combo box B Enum(In Total):

0: Rice

1: Noodle

2: Apple

3: Orange

in dialog form select Enum A value is Food,

Enum B value lookup based on Enum A value: Lookup value Rice, Noodle

in dialog form select Enum A value is Fruit,

Enum B value lookup based on Enum A value: Lookup value  Apple, Orange

if anyone already done this plz let me know........