更新时间:2022-12-28 16:14:09
也许是这样的:
VAR items1 =新的List< SelectListItem>();
VAR items2 =新的List< SelectListItem>();
// [..这里填充列表..]
VAR onlyInFirst = items1.RemoveAll(ITEM1 => items2.Any(ITEM2 => item1.Value == item2.Value));
除了
要求等于
和 GetHash code
在遍历类实现的。
I have two list of type IEnumerable <SelectListItem>
I need to create a new IEnumerable <SelectListItem>
with the elements of the first list that do not exist in the second list. how can i do this?
I tried to do it with a Except()
but did not result...
Example code:
IEnumerable<SelectListItem> SelectListItemA = ....;
IEnumerable<SelectListItem> SelectListItemB = ....;
IEnumerable<SelectListItem> Except = SelectListItemA.Except(SelectListItemB);
Maybe something like:
var items1 = new List<SelectListItem>();
var items2 = new List<SelectListItem>();
//[.. populate lists here ..]
var onlyInFirst = items1.RemoveAll(item1 => items2.Any(item2 => item1.Value == item2.Value));
Except
requires that Equals
and GetHashCode
is implemented in the traversed class.