Web1 day ago · I have two set of lists and I want to create one list with unique values and other with existing if number and name matches. So that I can do Update/Insert operation accordingly. My criteria are: if number and name matches in list1 and list2 then it will be part of existingRecords list; else move them to newRecords list; Current List: WebMar 10, 2024 · 3 2 1 I think this question would be better if you provided a smaller email filter class (fewer example fields) but actual lists (with 2 or 3 items) and an expected result of what the combined list should look like. I think it would make your requirements clearer. You may just be looking for Join though.
LINQ Contains Method in C# with Examples - Dot Net Tutorials
WebOct 4, 2016 · List list1 = new List () { 1, 2, 3, 4, 5, 6 }; List list2 = new List () { 1, 2, 3, 7, 8, 9 }; List list3 = new List (); var DifferentList1 = list1.Except (list2).Concat (list2.Except (list1)); foreach (var item in DifferentList1) { list3.Add (item); } foreach (var item in list3) { Console.WriteLine ("Different Item found in lists are {0}",item); … removable guard rails
C#中的First()和FirstOrDefault()方法_GTboy100的博客-CSDN博客
WebJun 23, 2024 · To find intersection of two lists in C#, use the Intersect() method. The following is our list 1. List list1 = new List(); list1.Add(2); list1.Add(3); list1.Add(5); list1.Add(7); The following is our list 2. List list2 = new List(); list2.Add(5); list2.Add(4); list2.Add(6); list2.Add(8); The following is the code to find the ... WebNov 11, 2024 · In the example, we have three lists , , and . Also, we have , which represents the intersection of the previous three ones. To calculate the intersection of multiple lists, we need to determine the mutual elements between them. In the example above, the mutual elements are marked with a red color. WebFeb 15, 2013 · In C# a method to calculate an intersection of list of dates is: public List dates_common (Timeserie ts1, Timeserie ts2) { var dt1 = new HashSet (ts1.dates); var dt2 = new HashSet (ts2.dates); dt1.IntersectWith (dt2); var dt = new DateTime [dt1.Count]; dt1.CopyTo (dt); return new … removable guardrail systems aluminum theater