Code to get Miscellaneous charges of purchase line in Ax 2012

 PurchTable purchTable;  
   PurchLine purchLine;  
   MarkupTrans markupTrans;  
   while select * from purchLine  
   Join purchTable  
   Join markupTrans  
   Where purchTable.PurchId == purchLine.PurchId  
     && markupTrans.TransRecId == purchLine.RecId  
     && purchTable.PurchId=="PO-0000043"  
   {  
     info(strFmt("%1 , %2 , %3",purchLine.PurchId,markupTrans.Txt,markupTrans.Value));  
   }