使用多个搜索字词

Question

查找两个列表的交集我有以下对象（JSON格式示出）

UserBatch1{ 
     User{ name: user1; jobtitle: admin; department: finance; location: building1; extn: 1234} 
     User{ name: user2; jobtitle: techie; department: engineering; location: building2; extn: 4321} 
     User{ name: user3; jobtitle:boss; department:management: location: building3; extn: 5555} 
} 
UserBatch2{ 
     User{ name: user1; jobtitle: admin; department: finance; location: buildlig1 extn: 1234} 
     User{ name: user4; jobtitle: techie; department: manufacturing; location: building4; extn: 8888} 
     User{ name: user5; jobtitle: admin; department: management; location: building1; extn: 7777} 
} 

的对象均包含在词典例如

List<User> UserBatch1; 
List<User> UserBatch2; 

使用C＃我怎么找到这些列表，其中，例如，名称中包含“用户”和JOBTITLE =“管理员”的交集。
另一个例子是where department = finance AND jobtitle = admin AND location = building1。
我已经简化了问题的清晰度，但每个对象将有10个属性，我会有10个列表。任何属性组合都可以用作搜索条件。

Answer 1

var User = UserBatch1.FirstOfDefault(i => i.department == "finance" && i.jobtitle = "admin");