Saving grid values afetr serialization

I can not save the grid contents to srever after serialization…
i use this code
checkgrid.clearAll();
checkgrid.parse(mygrid.serialize());

target grid loads well.but i could not able to save the values in DB…
DB connections are correct.
I use connector as below.

myDataProcessor1 = new dataProcessor(“Process_Name_Connector.php”);

myDataProcessor1.setTransactionMode(“GET”);

myDataProcessor1.setUpdateMode(“off”);

myDataProcessor1.init(checkgrid);

pls help me out…