How to change "oper" value in jqgrid?

as you can see in jqgrid. There are some parameter that will be send to serverside during edit form data.

Problem_date:2011-05-04
Line:FA 09
Shift:A
Model:KD-S27JD
Serial_number:106X2431
DIC:MC
Def_class:A
Symptom:Page 4 until 6 of Instruction Book missing printing
Cause:Instruction Book defective(GET0698-002A / PT PADAMA)
Symgrup:Accesories
Modgrup:K开发者_StackOverflowD
oper:edit
id:4

How do I do to change oper: value?

thanks in advance.

You correct you can use prmNames parameter of jqGrid. For example

prmNames: {oper:"myoper", editoper:"myedit"}

will change the oper=edit data send to the server to myoper=myedit.