Sometimes you need to find the duplicates in a list. I’m currently developing a little utility that tests code in a word processing document (now posted, you can find it here). Each code snippet in the document
Duplicates are preserved:");// Concatenate and remove duplicate names based on// default string comparer.varuniqueNamesQuery = fileA.Union(fileB).OrderBy(s => s); OutputQueryResults(uniqueNamesQuery,"Union removes duplicate names:");// Find the names that occur in both files (based o...
L want to find the duplicate if any in the combined string. for example below is the data table. I want to concatenate the two column values (EMPNO and DEPT) from the data table. and then find the duplication in that. How to form the
其中简述了使用 FileSystemWatcher 进行文件系统变更监测的方法，本人受此启发，决定制作一个文件夹内变动监...
I am looking for a clean solution to remove all duplicates from a List(of t) collection.For exampleprettyprint 复制 Class Person Public Property FirstName As String Public Property LastName As String Public Property Gender As GenderEnum Public Property Age As Integer Public Sub New(Byval ...
This sample uses a filter to find all customers in Washington and then it uses a foreach loop to iterate over the orders collection that belongs to each customer. //c# static void Linq4() { var customers = GetCustomerList(); Console.WriteLine("Customers from Washington and their orders:"...
IEnumerable<string> commonNamesQuery = fileA.Intersect(fileB); OutputQueryResults(commonNamesQuery, "Merge based on intersect:"); // Find the matching fields in each list. Merge the two // results by using Concat, and then // sort using the default string comparer. string nameMatch = "Gar...
This sample uses a filter to find all customers in Washington and then it uses a foreach loop to iterate over the orders collection that belongs to each customer. //c# static void Linq4() { var customers = GetCustomerList(); Console.WriteLine("Customers from Washington and their orders:"...
Duplicates are preserved:");// Concatenate and remove duplicate names based on// default string comparer.IEnumerable<string> uniqueNamesQuery = fileA.Union(fileB).OrderBy(s => s); OutputQueryResults(uniqueNamesQuery,"Union removes duplicate names:");// Find the names that occur in both ...
For lists of complex objects, how can the runtime engine perform the comparisons to determine whether or not two objects are duplicates? It can't simply compare the instance variables, as this would, in practice, simply compare the memory addresses of the objects. Instead, for complex objects...