2024 Get last record in linq c#

Get last record in linq c#

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WebJun 7, 2011 · 15. I have this: var result = (from t in MyDC where t.UserID == 6 orderby t.UpdateTime select t.ID).Last (); Basically, I'm using Linq-to-Sql and it doesn't support the .Last operator. I could retrieve all the records of the user and then using linq to objects to get my value but I'm wondering how to do this with linq-to-sql and return only one ... WebAug 10, 2010 · Usage: List l = new List {4, 6, 3, 6, 2, 5, 7}; List lastElements = l.TakeLast (3).ToList (); It works by using a ring buffer of size N to store the elements as it sees them, overwriting old elements with new ones. When the end of the enumerable is reached the ring buffer contains the last N elements. Share.

c# - Get the latest Value of table via EntityFramework - Stack Overflow

WebDec 12, 2024 · With the arrival of .Net 6, we can take advantage of new interesting methods of LINQ. This article will introduce you to all these new features, with a sample code for each of them. Enumerable.TryGetNonEnumeratedCount If you have an instance of type Enumerable, I advise you to avoid calling the Count() method of this one. WebMar 26, 2013 · get last in LINQ list. Context db = new Context (); List invoice = (from LocalInvoice in db.Invoices where LocalInvoice.Site_Id == this.SiteIdentifier select LocalInvoice).ToList (); Returns a list of records. I want to select the last in the list. hsa practice worksheets

c# - Checking if database column contains, starts with or ends …

WebJul 1, 2014 · You should sort your records based on the ID instead of ScheduleId and also filter the records that has the empty Filename: objContext.SchedulesAndFiles .Where(x => x.ScheduleId == scheduleId && x.Filename != "") .OrderByDescending(x => x.ID) … WebAug 29, 2016 · test.Take (test.Count-2); //If records are already sorted in the order you like, or test.Where (t=>t.ID <= test.Max (m=>m.ID)-2); //Where ID is a unique key and the list may not be sorted by id //This will return the lowest 8 ID even if the list is sorted by address or whatever. Share Improve this answer Follow edited Aug 29, 2016 at 19:43 WebApr 8, 2024 · Check if a string within a list contains a specific string with Linq. Proper LINQ where clauses. I'm using the version 6.0.10 of Entity Framework and SQL Server provider. But it's seems that these formulas cannot be translated, throwing an exception with the following message: The LINQ expression 'name => EntityShaperExpression: … hobby airport taxi service

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c# - Linq: How to get second last - Stack Overflow

WebApr 5, 2012 · 1 Answer Sorted by: 48 This should work: db.tblStoreItemPrices .Where (c => c.ItemID == ID) .GroupBy (c => c.CurrencyID) .Select (g => g.OrderByDescending (c => c.Date).First ()) .Select (c => new { c.CurrencyID, c.Amount }); Explanation: Select rows for the specific ItemID Group by CurrencyID WebI want to select records and GroupBy contactId. I used this LINQ extension method statement: Mains.GroupBy (l => l.ContactID) .Select (g => g.FirstOrDefault ()) .ToList () It returns record 1 and 4. How can I use LINQ to get the ContactID with the highest ID? (i.e. return 3 and 6) c# linq Share Improve this question Follow hs app hsa plan pros and cons

"WebNov 19, 2014 · var QueryDeatils = from M in db.Tr_Mealcode where M.codeDate.Date >= DateTime.Now.Date.AddDays (-7) group M by M.merchantID into G select new { MerchantId=G.Select (m=>m.merchantID) }; After trying this I got an exception The specified type member 'Date' is not supported in LINQ to Entities. " - Get last record in linq c#

Get last record in linq c#

c# - get last element with linq to sql - Stack Overflow

WebMy Linq query returns one record for each company, but it doesn't return the most recent ones: var query = from p in db.Payments where p.Status == false && DateTime.Compare (DateTime.Now, p.NextPaymentDate.Value) == 1 group p by p.CompanyID into op select op.OrderByDescending (nd => nd.NextPaymentDate.Value).FirstOrDefault (); WebI have a LINQ query to find records for the last 7 days which works fine No, you have a query that returns the calories burned more than 7 days ago (ie 8, 9, 10, etc). The way you structured your query, the correct way would be w.Date >= DateTime.Now.AddDays (-n) to get the last n days. Share Improve this answer Follow

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WebLINQ to Entities: Get more recent date from each group. UWP setting a ComboBox's SelectedItem when the ItemSource is LINQ. Analyzing queries by Entity Framework. Order by repeated times LINQ ASP.NET MVC. Linq query to get person visited zones of … WebDec 16, 2011 · LINQ var lastFiveProducts = (from p in products orderby p.ProductDate descending select p).Take (5); Lambda var lastFiveProducts = products.OrderByDescending (p => p.ProductDate).Take (5); Which ever you prefer. Share Improve this answer Follow answered Dec 16, 2011 at 10:23 James 79.7k 18 163 236

WebSep 22, 2008 · When I enter an object into the DB with Linq-to-SQL can I get the id that I just inserted without making another db call? I am assuming this is pretty easy, I just don't know how. ... c#.net; linq; linq-to-sql; ... Linq get last ID inserted. 1. F# obtaining ID after SubmitChanges (using SQLDataConnection type provider) ... WebAug 24, 2024 · You only want the first one when ordered by the Id in descending order. [HttpGet] public int GetStudentId () { var latestStudentRecord = _context.StudentModel .OrderByDescending (a => a.Id) .First (); // return only the Id property of the latest record return latestStudentRecord.Id; }

Web6 Answers. Sorted by: 248. If you just want the last date for each account, you'd use this: var q = from n in table group n by n.AccountId into g select new {AccountId = g.Key, Date = g.Max (t=>t.Date)}; If you want the whole record: var q = from n in table group n by n.AccountId into g select g.OrderByDescending (t=>t.Date).FirstOrDefault (); WebJan 4, 2012 · I want to get the second last of the the split string. So my output looks like this: null, 102, 1532, 45, 45 I have a solution for it that looks like this: ... c#; linq; linq-to-sql; Share. Improve this question. Follow edited Jan 4, 2012 at …

WebJul 14, 2024 · 1. If the Employee.Empid is the primary key, a crude way to do this could be as follows: var empDepList = (from D in db.Department join E in db.Employee on D.Empid equals E.Empid where D.Status == 1 orderby E.Empid, D.Depid descending select new { D.DepartmentName, E.EmployeeName }).FirstOrDefault (); Share.

WebJul 26, 2016 · 1 I have list as follows static List CurrentMessage = new List (); Dynamically, values assigned to this list for example: CurrentMessage.Add (new MessageDetail { UserName = 123,GroupName = somegrp, Message = somemsg }); Here, I want to take last 5 or so records. hsa practice test governmentWeb2 days ago · In my ASP.NET Core web application, I have a client sided list of Roles objects. Each of those objects contains three string properties and a string list containing the role names. I need to query entities of type Notification from a SQL Server database using EF Core and filter based on those roles. To do this, I need to check if the list ... hsa primary beneficiaryWebOct 4, 2015 · SELECT AccountNumber, OrderID,RechargeDate FROM OrderItem OI WHERE RechargeStatus = 'SUCCESS' AND AccountNumber ='" + AccountNumber + "' and DateADD (minute, -10,getdate () ) < RechargeDate AND OrderItemID <> " + OrderItemID + ""; Now, I want to rewrite the query above using LINQ. c# sql asp.net linq Share Improve … hobby airport time to arriveWebvar res = (from element in list) .OrderBy (x => x.F2) .GroupBy (x => x.F1) .Select () Now if you want to do something more complex like take the same grouping result but take the first element of F2 and the last element of F3 or something more custom you can do it by studing the code bellow hobby airport ticket agent jobsWebFeb 20, 2013 · 4 Answers. Sorted by: 54. Use descending ordering (by date, or id) and FirstOrDefault which is supported: var showPiece = context.Portraits .OrderByDescending (p => p.Date) .FirstOrDefault (); Another option, is select portrait which has max date (id) via subquery (as Evelie suggested in comments): hobby airport shuttle to car rentalWebHow to use MS-XCEP and MS-WSTEP in .NET or JavaScript to get a certificate from AD CS? Display treeviewitem as grid rows in wpf; Output logs to Xunit using Serilog Static Logger in C#; Getting "error": "unsupported_grant_type" when trying to get a JWT by calling an OWIN OAuth secured Web Api via Postman; How to select last record in a LINQ ... hobby airport shuttle serviceWebDec 7, 2010 · Solution 1 Just call Last () [ ^ ]: var lastItem = yourQuery.Last () If you think there is a chance your table may be empty, use LastOrDefault () [ ^] instead. This will return null if nothing is found. var lastItem = yourQuery.LastOrDefault (); if (lastItem == null ) { //Table was empty. } hobby airport terminal layout