linq2db.FSharp 6.5.0

Prefix Reserved
.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. .NET Framework 4.6.2 This package targets .NET Framework 4.6.2. The package is compatible with this framework or higher. 
dotnet add package linq2db.FSharp --version 6.5.0
                    


                    

                
NuGet\Install-Package linq2db.FSharp -Version 6.5.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="linq2db.FSharp" Version="6.5.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="linq2db.FSharp" Version="6.5.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="linq2db.FSharp" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add linq2db.FSharp --version 6.5.0
                    


                    

                
#r "nuget: linq2db.FSharp, 6.5.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package linq2db.FSharp@6.5.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=linq2db.FSharp&version=6.5.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=linq2db.FSharp&version=6.5.0
                    


                            Install as a Cake Tool

LINQ to DB F# Services

License

LINQ to DB F# Services provides support for F#-specific language features in Linq To DB.

Supported features:

  • F# record types support in mappings and projections

  • Automatic mapping of F# 'T option and 'T voption columns: the "some" case is stored as the value and the "none" case as NULL, with no manual MappingSchema configuration. Value-typed options (e.g. int option) correctly store the "none" case as NULL rather than the default value. Only options over a scalar element type are auto-mapped. The column's DB type (including facets such as decimal precision/scale and string length) is resolved from the element type against the connection's provider mapping schema, so it matches the non-option column of the same element type.

  • Query translation of F# option / voption member access: .IsSome / .IsNone translate to IS NOT NULL / IS NULL and .Value to the underlying column, so option members can be used directly in where and select. The voption case testers .IsValueSome / .IsValueNone translate as well. Because .Value becomes the column itself, selecting it from a row whose column is NULL reads back the element's default instead of raising the way Option.get None does - the same as Nullable<T>.Value.

  • Automatic mapping of single-case scalar discriminated unions (e.g. type UserId = UserId of int): the column stores the wrapped value and reads back as the reconstructed union, and equality against a union literal (x.Key = UserId 10) translates to a comparison on the wrapped value. UserId option is supported too, storing the "none" case as NULL.

    A non-struct single-case union is a reference type, so reading a NULL into one yields null - for example on the unmatched row of a LEFT JOIN. A [<Struct>] single-case union is a value type and so cannot hold null: reading a NULL into one yields the union wrapping the element's default, so for [<Struct>] type Age = Age of int that is Age 0, the same way a plain int member reads NULL as 0. Use option when the column is nullable.

More features planned for future releases.

How to use

using var db = new DataConnection(
  new DataOptions()
    .UseSqlServer(@"Server=.\;Database=Northwind;Trusted_Connection=True;")
    // enables F# Services for connection
    .UseFSharp());
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 is compatible.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
6.5.0 87 9/11/2026
6.4.0 233 8/7/2026
6.3.0 244 5/17/2026
6.2.1 466 3/17/2026
6.2.0 144 3/12/2026
6.1.0 453 12/15/2025
6.0.0 6,838 12/5/2025
6.0.0-rc.3 277 8/14/2025
6.0.0-rc.2 167 7/31/2025
6.0.0-rc.1 184 7/17/2025
6.0.0-preview.4 273 3/26/2025
6.0.0-preview.3 322 1/28/2025
6.0.0-preview.2 134 1/22/2025

https://github.com/linq2db/linq2db/wiki/releases-and-roadmap#release-650