change name of group in datagridview column automatically.(also change in profile table) when I change name of group in table

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C#

WinForms

hi I have combobox1 and datagridview1 column where show name of group.

column group of datagridview1 save name of group from combobox1 in profile table.(profile=name of first table)
combobox1 binds to groupperson table in database.(groupperson = name of secound table)

when I change name of group in groupperson table I want change this group in datagridview column group automatically.(also change in profile table)

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groupperson table:

id    name
1     friend
2     family

-----------------------
datagridview1:

name   family    mobilenomber   group
david  mengan    09365985555    friend

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when I change friend group to boyfriend name I want change also datagridview1 column group to boyfriend.
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after change table
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groupperson table:
-----------------------

id    name
1     boyfriend
2     family

-----------------------

datagridview1:

name   family    mobilenomber   group
david  mengan    09365985555    boyfriend