Adding row in table it is taking first value

Dear experts,

I am new in sap c4c.

I have a requirement , in this requirement i had taken table with two fields employee id & employee name employee id field having f4 help. when we select employee id from f4 help then employee name automatically comes.

For first row,

when i am selecting employee id from f4 help , employee name automatically comes, it is working fine.

For second row ,

when i am adding second row , it is taking first row employee name and employee id is blank.

i have written code at node after modify.

Regards,

Puneet Mittal