比较2个列表对象 [英] Comparing 2 list objects

问题描述

大家好，我有两个要比较的列表对象.我认为最好的方法是使用Linq.好的，我的2个列表是List(Of PermissionObj)，所以基本上我试图返回两个列表都不通用的项目的列表.

Hey guys I have two list objects that I am trying to compare. I think the best way to do is use Linq. Ok my 2 lists are List(Of PermissionObj) so basicaly I am trying to return a list of the items that are not common to both lists.

Dim _listOfAllPermissionGroups As List(Of PermissionGroupObj)
Dim _listOfUnSelectedGroups As List(Of PermissionGroupObj)

  For Each objMember As PermissionGroupObj In _listOfAllPermissionGroups
                    For Each objUserPermissions As PermissionGroupObj In _listOfUserPermissionGroups
                        If objMember.PermissionGroupId = objUserPermissions.PermissionGroupId Then
                            _listOfUnSelectedGroups.Remove(objMember)
                            Exit For
                        End If
                    Next
                Next

我使用了Foreach循环，但是由于任何原因，匹配的对象都不会被移除.

谢谢大家.

I have used a Foreach loop but for whatever reason the matched object doesn''t get removed.

Thanks guys.

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