我有一个对象列表(List1
)和一个字符串列表(List2
- 对象名称列表)
如果List2
中不存在object.Name,我需要从List1获取所有对象如何写这个LINQ
C#。?
答案 0 :(得分:9)
public class Class1
{
public string Name {get;set;}
}
var List1 = new List<Class1>();
var List2 = new List<string>();
var result = List1.Where(x=>!List2.Contains(x.Name)).ToList();
或者:
var result = List1.Where(x=>!List2.Any(n=>n==x.Name)).ToList();
答案 1 :(得分:0)
class Program
{
static void Main(string[] args)
{
List<List1Class> listClass = new List<List1Class>();
listClass.Add(new List1Class { ObjectName = "obj1" });
listClass.Add(new List1Class { ObjectName = "obj2" });
listClass.Add(new List1Class { ObjectName = "obj3" });
listClass.Add(new List1Class { ObjectName = "obj4" });
List<string> listString = new List<string>();
listString.Add("obj2");
listString.Add("obj4");
listString.Add("obj5");
var filterlist = listClass.Where(l => !listString.Contains(l.ObjectName)).ToList();
}
}
类List1Class { public string ObjectName {get;组; }
//Add other property
}