Cannot implicitly convert type ienumerable

Author: rqao

August undefined, 2024

WebApr 13, 2024 · Since you need IEnumerable, not IEnumerable create instances of LoadingListCount instead by specifying the type in the invocation of new operator: .Select (g => new LoadingListCount {Name = g.Key, Count = g.Count ()}) Share Improve this answer Follow answered Apr … WebПреобразование IEnumerable в byte[] var r = from s in tempResult select Encoding.GetEncoding(iso-8859-1).GetBytes(s); Я понимаю, это возвращает IEnumerable , но я ищу LINQ способ преобразовать весь... Cannot implicitly convert type 'string' to 'byte[]' using C#

Cannot implicitly convert type …

WebIn C#, you cannot implicitly convert a non-generic IList to a generic List because they are different types. An IList represents a non-generic collection of objects that can be individually accessed by index, while List is a generic collection that can only contain objects of a specific type. WebJun 4, 2024 · Why cannot a dictionary convert to an IEnumerable [closed] Ask Question Asked 1 year, 10 months ago. Modified 1 year, 10 months ago. Viewed 556 times ... Cannot implicitly convert type 'System.Collections.Generic.Dictionary' to … song i\u0027m in love with you

c# - 使用Linq只返回每個項目一次 - 堆棧內存溢出

WebOct 15, 2012 · The main issue with your example that you can't implicitly convert Task return types to the base T type. You need to use the Task.Result property. Note that Task.Result will block async code, and should be used carefully. Try this instead: public List TestGetMethod () { return GetIdList ().Result; } Share. WebIEnumerable e = (from char c in source select new { Data = c.ToString () }).Select (t = > t.Data); // or IEnumerable e = from char c in source select c.ToString (); // or IEnumerable e = source.Select (c = > c.ToString ()); Then you can call ToList (): Web问题在于，在语句“IEnumerable project=new project（）；”中，您试图用项目对象初始化IEnumerable对象。必须使用实现IEnumerable的对象初始化IEnumerable。项目不是可枚举的；没有办法反复浏览它。在本例中，您可以使用C#列表中更常用的IEnumerable之一，如 … smallest church in ohio

Cannot implicitly convert type ienumerable

WebIEnumerable e = (from char c in source select new { Data = c.ToString () }).Select (t = > t.Data); // or IEnumerable e = from char c in source select c.ToString (); // or IEnumerable e = source.Select (c = > c.ToString ()); Then you can call ToList (): WebLINQ to Entities does not recognize the method 'System.Collections.Generic.List`1[System.Int32] ToList[Int32](System.Collections.Generic.IEnumerable`1[System.Int32])' method, and this method cannot be translated into a store expression. 我看到linq查询的返回类型 …

Did you know?

WebMay 5, 2015 · Based on the new error you have it means that somewhere you are trying to convert a IList to a List which can not be done implicitly because anyone could write a class that implements IList. So you either need to do an explicit cast, or change the types to match. WebMay 20, 2015 · The quesry now instead of being dictionary is IEnumerable, but whould be Dictionary. How could it be solved? This is the error: Cannot implicitly convert type 'System.Collections.Generic.IEnumerable' to 'System.Collections.Generic.Dictionary'. An explicit conversion exists (are you missing a …

WebMay 18, 2015 · Cannot implicitly convert type 'System.Collections.Generic.IEnumerable' to 'System.Collections.Generic.IEnumerable'. An explicit conversion exists (are you missing a cast?) Why is an implicit conversion required when they are the same … WebMar 8, 2012 · FirstOrDefault () will turn the IEnumerable into an int. Actually it takes the first occurance in the outputresult of your linq-query. Share Improve this answer Follow answered Sep 28, 2009 at 13:37 Natrium 30.5k 16 60 73 1 Only if there is at least one element :-). Otherwise it returns 0. – Joey Sep 28, 2009 at 13:41 Add a comment Your …

WebC# : Cannot implicitly convert type System.Collections.Generic.IEnumerable to boolTo Access My Live Chat Page, On Google, Search for "hows tech developer c...

WebApr 9, 2024 · If you have better answer, please add a comment about this, thank you! Source: Stackoverflow.com

WebSep 15, 2024 · Cannot implicitly convert type 'type' to 'type' The compiler requires an explicit conversion. For example, you may need to cast an r-value to be the same type as an l-value. Or, you must provide conversion routines to support certain operator overloads. Conversions must occur when assigning a variable of one type to a variable of a … song i\u0027m in love with the cocoWeb问题在于，在语句“IEnumerable project=new project（）；”中，您试图用项目对象初始化IEnumerable对象。必须使用实现IEnumerable的对象初始化IEnumerable。项目不是 … song i\u0027m in the corner watching you kiss herWebApr 9, 2024 · If you have better answer, please add a comment about this, thank you! Source: Stackoverflow.com song i\u0027m in the jailhouse nowWebMay 2, 2013 · return newsRepository.GetMany (constraint); returns an IEnumerable, you should do: return newsRepository.GetMany (constraint).FirstOrDefault (); return the first News if it is found in newRepository, null otherwise Share Improve this answer Follow answered May 2, 2013 at 8:35 Ahmed … smallest christmas tree air freshener memeWeb我需要填寫數據庫表中的下拉鍵和值。我在做什么. Dictionary states = resultSet.Tables[0].AsEnumerable() .ToDictionary(row => row.Field(0), row => row.Field(1)); //Add the list item states.Add(0, "Select State"); //Sort the dictionary to set the "0" item at the top var sortedStates = (from entry in states orderby entry.Key … smallest church in americaWebMar 2, 2024 · 2 solutions Top Rated Most Recent Solution 1 Use var and don't create a list at all. You need to call ToList at the end of your Select in order to get back a list, instead of an IEnumerable. List eventt_grp1 = lstGroup.Select (r => … smallest chromebook 2021WebNov 27, 2012 · Convert type 'System.Dynamic.DynamicObject to System.Collections.IEnumerable. I'm successfully using the JavaScriptSerializer in MVC3 to de-serialize a json string in to a dynamic object. What I can't figure out is how to cast it to something I can enumerate over. The foreach line of code below is my latest attemt but it … song i\u0027m into something good