Get next number sequence in Axapta

//Axapta Job Code Snippet

static void GetNextNumber(Args _args)

{

NumberSeq                   numberSeq;
MyTempTable tempTable ;

;

ttsbegin;
numberSeq = NumberSeq::newGetNumFromCode("ItemId");

tempTable.clear();
tempTable.ItemId = numberSeq.num();
tempTable.insert();

ttscommit;

}