场景

费用应付单明细的出入库单字段是多选基础资料字段，目前无法在列表直接显示，也就无法在列表直接看到所选的出入库单号。这里提供一种思路：在费用应付单明细增加一个文本字段，当选择出入库单时，将所选单据的编号通过逗号分隔，更新到新增的文本字段上，这样在列表查看这个文本字段就可以看到相关的出入库单号

实现方式

通过表单插件实现，这里提供了python版本的插件，可以直接在BOS IDE进行注册使用

Python插件如下，请按上图说明，进行调整：

import clr

clr.AddReference('Kingdee.BOS')

clr.AddReference('Kingdee.BOS.Core')

clr.AddReference('Kingdee.BOS.DataEntity')

from Kingdee.BOS.Util import *

from Kingdee.BOS import LocaleValue

from Kingdee.BOS.Core.Metadata import *

from Kingdee.BOS.Core.Bill.PlugIn import *

from Kingdee.BOS.Orm.DataEntity import *

from System import *

def DataChanged(e):   

    if e.Key.Equals("FINSTOCKID", StringComparison.InvariantCultureIgnoreCase):

        ##获取多选基础资料数据

        dataList = this.Model.GetValue("FINSTOCKID")   

        if dataList is None:

            return

        localValue = ""   

        for  data in dataList:

                  dyobj =data["INSTOCKID"]

                  value = dyobj["Number"]

                  localValue = localValue + value + ","

             ##对辅助字段赋值    

        this.Model.SetValue("F_KD_Text", localValue.strip(","))

    if e.Key.Equals("FOUTSTOCKID", StringComparison.InvariantCultureIgnoreCase):

        ##获取多选基础资料数据

        dataList = this.Model.GetValue("FOUTSTOCKID")   

        if dataList is None:

            return

        localValue = ""   

        for  data in dataList:

                  dyobj =data["OUTSTOCKID"]

                  value = dyobj["Number"]

                  localValue = localValue + value + ","

             ##对辅助字段赋值    

        this.Model.SetValue("F_KD_Text", localValue.strip(","));