Nettet28. aug. 2024 · I just added extra .ToString methods to all columns, .ToList to String.Join method and final LINQ is like: (From row In ModifiedJobsDT.AsEnumerable Group row By pen = row(“ProcessAndEnvironmentName”).ToString Into grp = Group Let fpn = String.Join(“,”,grp.Select(Function (x) x(“FullProcessName”).ToString).ToList)Nettet15. sep. 2024 · LINQ can be used to query and transform strings and collections of strings. It can be especially useful with semi-structured data in text files. LINQ queries can be combined with traditional string functions and regular expressions. For example, you can use the String.Split or Regex.Split method to create an array of strings that you …
LINQ: Do you use Fluent or Query Expression? : r/dotnet - Reddit
NettetThe basic gist of it is that you cannot access string.join in EF queries. You must create the LINQ query, then call ToList() in order to execute the query against the db. Then you have the data in memory (aka LINQ to Objects), so you can access string.join. The suggested code from the referenced link above is as follows - "UNKNOWN", LValues = string.Join (',', grp.Select (x=>x.LValue).Distinct ()), Qty = g.Sum (x => x.Qty) }); I switched from query syntax to method to better show what is done in the DB and what is done in memory but you can use either syntax through out. Share Improve this answer Follow answered May 8, 2024 at 14:54 juharr 31.5k 4 57 93st michael\u0027s ukrainian church milwaukee
Using Group by for more than two columns using Linq
Nettet15. okt. 2013 · This sql command only joins two table and on them do group by. Problem is in group by. When i use group by under one table, all is ok and linq commant … NettetC# : How can I sort a string of text followed by a number using LINQTo Access My Live Chat Page, On Google, Search for "hows tech developer connect"As promis... NettetAn alternative way to do this could be select distinct PersonId and group join with persons: var result = from id in persons.Select (x => x.PersonId).Distinct () join p2 in … st michael\u0027s ukrainian church cherry hill nj