List<string> zip=lisA.Zip(lisB, (first, second) => first +""+ second).ToList();//结果 { "A A", "B B", "C H", "A K" }} 补充知识:c#中List的元素遍历(foreach)和去重复(distinct) 一、准备工作 定义实体类people publicList<People> PeopleList {get;set; }publicclassPeople {public...
publicclassUser : IEquatable<User>{publicintUserID {get;set; }publicstringName {get;set; }publicstringSex {get;set; }publicboolEquals([AllowNull] User other) {returnName ==other.Name; }publicoverrideintGetHashCode() {returnName?.GetHashCode() ??0; } } varlist1 =newList<User>{newUser...
Distinct: 用于去除重复的元素。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 var result = collection.Distinct(); Take / Skip: 用于从序列中获取前N个元素或跳过前N个元素。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 var result = collection.Take(5); var result = collection.Skip(3...
As result I would like to get a list where ALL persons where the age is duplicate to be removed from the list. For this example "Barry" and "Kate" should not be included in the list.If something is not clear please, let me know....
Get DISTINCT records using DataTable.Compute Method Get distinct rows from a DataView? Get Domain Name from Active directory Get each pixel color in an image? Get Enum By Index Get Enum from assembly with reflection Get enum values based on attribute Get field names from Binding Source Get fi...
Other LINQ methods find elements in a collection, compute values from the elements in a collection, or modify the collection or its elements. These examples help you learn about LINQ methods and how you can use them with your collections, or other data sources. How to find the set ...
That is the very same message I would expect to get if you removed the ".ToList()" method from the query I posted. // This will cause the above error }).Distinct(new UsuersComparer); // This should not cause that error }).ToList().Distinct(new UsuersComparer); The reason why ...
Further, what if we want to get a list of distinct values across all of the lists? It’s easy using the Distinct operator in LINQ. csharpcode 复制 static void Main(string[] args) { List<IEnumerable<KeyValuePair>> blueList = FillList(); IEnumerable<KeyValuePair> items = (from green...
Distinct<TSource>(IQueryable<TSource>) Returns distinct elements from a sequence by using the default equality comparer to compare values. Distinct<TSource>(IQueryable<TSource>, IEqualityComparer<TSource>) Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare...
Distinct<TSource>(IQueryable<TSource>) Returns distinct elements from a sequence by using the default equality comparer to compare values. ElementAt<TSource>(IQueryable<TSource>, Int32) Returns the element at a specified index in a sequence. ...