how to change the column name and update in to the dDGV

Question

how to change the column name  and update in to the data grid view using c sharp in the run time screen.

Database as follows using data grid view ;
 
 S no           int
 Staff code     varchar
 staff name     varchar
 mobile        varchar
 Active        char(1)

in this table 100 of records are there.table name schedule.

 Design as follows;
 
 
 Day Period  staff name  staff name staff name staff name staff name.


instead of staff name i get the staff name from the data base table  and display in to the data grid view column .



                i want the output as


 Day  Period   VRV  RK  Ck  Mk   PL   GS   CMK

the above name  VRV RK Ck Mk PL GS CMK should be retrieve from the data base, table  name is schedule.

from the schedule table i want to get the staff name and display in to the data grid view column.

please send the code.