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VictorioBerra avatar VictorioBerra commented on May 27, 2024 1

Grab this branch if you want a solution file and a local clone of DataTables.Queryable so you can debug it on the fly.

https://github.com/VictorioBerra/DataTables.Queryable.ProjectTo.Issue.29/tree/dtqueryable-project-referenced

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AlexanderKrutov avatar AlexanderKrutov commented on May 27, 2024

Hmm... I'm using DataTables.Queryable with AutoMapper too, but never faced with the same issue. May be it's because of Microsoft.EntityFrameworkCore.Query. Need time to verify.

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VictorioBerra avatar VictorioBerra commented on May 27, 2024

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VictorioBerra avatar VictorioBerra commented on May 27, 2024

@AlexanderKrutov here you go:

https://github.com/VictorioBerra/DataTables.Queryable.ProjectTo.Issue.29

The code that breaks is here: https://github.com/VictorioBerra/DataTables.Queryable.ProjectTo.Issue.29/blob/master/Program.cs#L90

To get started run these, it will automatically drop the SQLIte DB and migrate and seed on every run.

git clone https://github.com/VictorioBerra/DataTables.Queryable.ProjectTo.Issue.29.git
cd DataTables-ProjectTo-issue-29/
dotnet run
Unhandled Exception: System.InvalidCastException: Unable to cast object of type 'Microsoft.EntityFrameworkCore.Query.Internal.EntityQueryable`1[EFCore.Models.CatViewModel]' to type 'System.Linq.IQueryable`1[EFCore.Models.Cat]'.
   at DataTables.Queryable.DataTablesQueryProvider`1.CreateQuery(Expression expression)
   at System.Linq.Enumerable.Aggregate[TSource,TAccumulate](IEnumerable`1 source, TAccumulate seed, Func`3 func)
   at AutoMapper.QueryableExtensions.ProjectionExpression.To[TResult](Object parameters, Expression`1[] membersToExpand) in C:\projects\automapper\src\AutoMapper\QueryableExtensions\ProjectionExpression.cs:line 62
   at AutoMapper.QueryableExtensions.Extensions.ProjectTo[TDestination](IQueryable source, IConfigurationProvider configuration, Expression`1[] membersToExpand) in C:\projects\automapper\src\AutoMapper\QueryableExtensions\Extensions.cs:line 76
   at EFCore.Program.Main(String[] args) in C:\Users\me\Desktop\DataTables.Queryable.ProjectTo.Issue.29\Program.cs:line 90
   at EFCore.Program.<Main>(String[] args)

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