EAS如何给一个对象字段赋值（dep加的字段）

PostRequisitionInfo postRequisitionInfo=new PostRequisitionInfo();
postRequisitionInfo.setId(this.editData.getId());
SelectorItemCollection collection = new SelectorItemCollection();
collection.add(new SelectorItemInfo("sendRemark"));
collection.add(new SelectorItemInfo("sendPerson"));
collection.add(new SelectorItemInfo("checkPaydiff"));
postRequisitionInfo.put("sendRemark", ((KDTextArea)this.dataBinder.getComponetByField("sendRemark")).getText());
postRequisitionInfo.put("sendPerson", ((KDBizPromptBox)this.dataBinder.getComponetByField("sendPerson")).getValue());
postRequisitionInfo.put("checkPaydiff", ((KDCheckBox)this.dataBinder.getComponetByField("checkPaydiff")).isSelected());
PostRequisitionFactory.getRemoteInstance().updatePartial(postRequisitionInfo, collection);