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Internal .net Framework Data Provider Error 1025

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Casting LINQ expression throws “Internal .NET Framework Data Provider error 1025.” up vote 4 down vote favorite The following code: model.Items = dbQuery.Select(c => new Item { Total = c.Items.Count((Func)(t => t.Amount.HasValue)) }).ToArray(); Throws the following exception: Internal .NET Framework Data Provider error 1025. However the exact code minus the cast works: model.Items = dbQuery.Select(c => new Item { Total = c.Items.Count(t => t.Amount.HasValue) }).ToArray(); Note: dbQuery is just an EF ObjectQuery. The expected type for Count() is Func, and it's even verified by ReSharper that they're the same type by the fact that it grays the cast out, suggesting that it's not needed and they're functionally equivalent. However, the exception proves that they are not, in fact, functionally equivalent. Also, I did see this related question/answer, but Count() (in this case, anyway) will not accept an Expression>, so that doesn't work for me. c# linq entity-framework share|improve this question asked Jul 15 '14 at 18:12 Jerad Rose 7,8171050129 1 So why are you trying to add something that is designed to be useless, but that is resulting in your code not working at all. If it hurts when you do that, don't do that. –Servy Jul 15 '14 at 18:31 Did you try to cast to Espression> instead? –Alexander Galkin Jul 15 '14 at 18:37 @AlexanderGalkin He answers that right in the question. –Servy Jul 15 '14 at 18:39 @Servy I was trying to ab

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just http://stackoverflow.com/questions/24765269/casting-linq-expression-throws-internal-net-framework-data-provider-error-1025 like you, helping each other. Join them; it only takes a minute: Sign up Passing func as parameter in Linq to Entities and 'Internal .NET Framework Data Provider error 1025' error up vote 18 down vote favorite 4 We have a class called Task: public partial class Task : EntityObject { public EntityCollection TaskUsers { get http://stackoverflow.com/questions/1711448/passing-func-as-parameter-in-linq-to-entities-and-internal-net-framework-data {...} set{...} } } It has navigation property called TaskUsers, which contains users attached to this taks: public partial class TaskUser : EntityObject { public User User { get {...} set { } } } Every TaskUser object has User object. We are given IQueryable tasks. We want to find tasks assigned to user with ID = 1. When we use tasks.Where(t => t.TaskUsers.Any(a => a.User.ID == 1)) everything works fine. When we use Func function = a => a.User.ID == 1; return tasks.Where(t => t.TaskUsers.Any(function)); we get nice 'Internal .NET Framework Data Provider error 1025' error. Why? I want to build much more complicated filters using Expression class, but if I can't pass simple Func, this can't be done. What should I do? EDIT Maybe Func function = a => a.User.ID == 1; return tasks.Where(t => t.TaskUsers.Any(function)); doesn't work, but Expression> expression = a => a.User.ID == 1; return tasks.Where(t => t.TaskUsers.AsQueryable().Any(expression)); works! That is all I needed. entity-framework linq-to-entities lambda shar

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack http://stackoverflow.com/questions/32206992/linq-to-sql-internal-net-framework-data-provider-error-1025 Overflow the company Business Learn more about hiring developers or posting ads with us http://queforum.com/net-basics-examples/701858-dot-net-internal-net-framework-data-provider-error-1025-a.html Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Linq to SQL Internal .NET Framework Data Provider error 1025 up vote 0 down vote favorite internal .net Can someone tell me why I can't select new objects from MS SQL database in Entity Framework in this way: public static Expression> IsInDatesRange(DateTime startDate, DateTime endDate){ return ld => ld.StartDate <= endDate && ld.EndDate >= startDate; } this.ObjectContext.People.Select(p => new NewPeopleObject { Guid = p.Guid, FirstName = p.FirstName, LastName = p.LastName, LeaveDays = p.CalendarData.LeaveDays.AsQueryable() .Where(LeaveDayExpressions.IsInDatesRange(startDate, endDate)) .Select(ld => new LeaveDaySummary { StartDate = ld.StartDate, EndDate = ld.EndDate, }) }) internal .net framework Without AsQueryable() I can't compile application, because LeaveDayExpressions.IsInDatesRange is static Expression. I have tried pass only Func to Where clause but it throws Internal .NET Framework Data Provider error 1025. With Expression and AsQueryable on LeaveDays I get this exception: Code supposed to be unreachable People is ObjectSet collection with one CalendarData object on one People and CalendarData has EntityCollection set of LeaveDays. NewPeopleObject is a class with few properties and IEnumarable LeaveDaySummaries collection. What can I do to pass Expression to Where clause without parsing linq to sql error? c# .net linq entity-framework expression share|improve this question edited Aug 25 '15 at 20:11 asked Aug 25 '15 at 14:38 maniek099 448 1 As far as I can tell you don't show us how LeaveDayExpressions is defined. Kinda hard to help without being able to see that. –Hogan Aug 25 '15 at 15:13 I edited my code above. –maniek099 Aug 25 '15 at 20:12 Yeah that still does not make sense. Are you trying to make an extension method? Then the syntax should be something like .Where(L => L.IsInDatesRange(startDate, endDate)) –Hogan Aug 25 '15 at 20:40 It's not extension, it's an expression to filter LeaveDays in database query. It works fine with ObjectSet like this.ObjectContex

Provider error 1025 Results 1 to 1 of 1 Thread: dot net - Internal .NET Framework Data Provider error 1025 LinkBack LinkBack URL About LinkBacks Bookmark & Share Digg this Thread!Add Thread to del.icio.usBookmark in TechnoratiTweet this thread Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 02-26-2014,05:30 PM #1 kruti Senior Member Join Date Jun 2013 Posts 28,053 dot net - Internal .NET Framework Data Provider error 1025 IQueryable query = context.Organizations; Func predicate = r => !r.IsDeleted; query.Select(o => new { Reservations = o.Reservations.Where(predicate) }).ToList(); this query throws Internal ".NET Framework Data Provider error 1025" exception but below query does not. query.Select(o => new { Reservations = o.Reservations.Where( r => !r.IsDeleted) }).ToList(); I need to use first one because i need to check few if statement for construct right predicate. I know that i can not use if statements in this circumtence that is why i pass delegate as parameter. How can i make it work first query ? view solution Share Share this post on Digg Del.icio.us Technorati Twitter Reply With Quote « Previous Thread | Next Thread » Similar Threads dot net - Error: No Entity Framework provider found for the ADO.NET provider with inv By kruti in forum .Net basics and examples Replies: 0 Last Post: 02-08-2014, 02:20 AM dot net - No Entity Framework provider found for the ADO.NET provider with invariant By kruti in forum .Net basics and examples Replies: 0 Last Post: 01-17-2014, 12:21 AM dot net - Unable to find the requested .Net Framework Data Provider. It may not be in By kruti in forum .Net basics and examples Replies: 0 Last Post: 01-16-2014, 08:50 AM dot net - No Entity Framework provider found for the ADO.NET provider with invariant By kruti in forum .Net basics and examples Replies: 0 Last Post: 11-22-2013, 11:30 AM dot net - Entity Framework ADO.NET Sql.Data.Client provider not found By kruti in f

 

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