正确:
this.View.Model.GetPKValue();
错误:

this.View.Model.GetValue("FBILLNO")
this.View.Model.GetValue("F_XHWT_Date")
this.View.Model.GetValue("FQty")
this.View.Model.GetValue("F_XHWT_CustId_Id")
结果是null
正确:
this.View.Model.GetValue("F_XHWT_CustId")
(this.View.Model.GetValue("F_XHWT_CustId") as DynamicObject)["Id"]
