Compare gridview row and repeater row in asp.net using c#

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C#3.5

Repeater control as follows

coursename coursedate coursecode
RAFF 30 mar 14 PSTF
RPST 30 mar 14 PSTF


In Gridview as follows

coursename coursedate coursecode
RAFF 30 mar 14 PSTF
RPST 30 mar 14 PSTF
MFA 29 mar 14 AMC


i want to compare the Gridview 3rd row coursecode(AMC) and Repeater control 2nd row coursecode(PSTF).

if both course code matches i want to show the message coursecode matches.
if both course code not matches i want to show the message coursecode not matches.

for that how can i do in asp.net using c#.
please help me how can i write the code in asp.net using c#.


Regards,
Jegan B.