ismissing
ismissingismissing
1
By default, items in the Fields collection have two properties: Value and IsMissing.
默认情况下，Fields集合中的项有两个属性：Value和IsMissing。
2
The Value and IsMissing properties are defined for all data sources.
针对所有的数据源定义Value和IsMissing属性。
3
Its canopy looks like it ismissing too.
它的座舱罩看起来也没有。