Nettet15. jul. 2010 · If I have a linq query that looks like this, how can I check to see if there were no results found by the query? var LinqResult = from a in Db.Table where a.Value0 == "ninja" group a by a.Value1 into b select new { Table = b}; if (LinqResult.Count () == 0) //? { } c# linq Share Improve this question Follow asked Jul 15, 2010 at 20:43 sooprise NettetIn query expression syntax, a where (Visual C#) or Where (Visual Basic) clause translates to an invocation of Where (IEnumerable, …
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Nettet16. aug. 2010 · Sorted by: 74. Use Contains: int [] ids = { 1, 2, 3, 4, 5}; var query = db.myTable.Where (item => ids.Contains (item.ID)); or in query syntax: int [] ids = { 1, … NettetFor join I mean LINQ's Join, GroupJoin functions. Also join of two recordsets can be expressed by SelectMany.It is standard LINQ functions which is convertible to the SQL. … christ became obedient to the point of death
Write LINQ queries in C# Microsoft Learn
NettetUsing “where” clause in linq is just like writing where clause in SQL query, helps filtering records from actual result-set. We can use filtering operator "where" in LINQ to filter the … Nettet2 dager siden · I found Removing "RE:" (and alikes) from email subject using RegEx class which is great at stripping re: etc. from the incoming subject. But, we have instances where the ticket title includes the RE:. I anticipate that it could include FW: and FWD: and the mixed and lower case versions of all of those. What's the cleanest Linq or SQL query … NettetУ меня есть строковый массив вроде такого. string[] ColumnArray = new string[] { First story, second data , third way }; Следом идет запрос linQ на этот массив. string … geometry images gif