f#-data

问题 Somewhat of a F# beginner. I'm trying to test out some of my XmlTypeProvider code in the interactive window by first entering it in a script (fsx) file. The script file won't recognize the following open FSharp.Data // gives "The namespace or module 'FSharp' is not defined" Everything has been added to reference, and .fs files seem to not have any problems finding the XmlTypeProvider reference but for some reason, a script in the same project does not. I even got the code to work in a .fs

问题 I am trying to read value from XML file from FAKE , But I am getting an error i.e. .fsx(9,16) : eror FS000: Incomplete structurd construct at or before this point in expression. Expected '->' or other token. Below is my code , I am using XMLHelper.XMLRead to read values from xml file . #r "./packages/FAKE/tools/FakeLib.dll" open Fake open Fake.XMLHelper Target "BuildMain" (fun _ -> for s in XMLHelper.XMLRead true "D:/test/Version.Config" "/version/major/minor" trace s) "BuildMain"

问题 I'm trying to use the FSharp.Data third party library but am getting an error The type 'XmlProvider' is not defined on the XmlProvider class. namespace KMyMoney open FSharp.Data module Read = let xml = File.ReadAllText("KMyMoneySampleFile.xml") type KMyMoneySource = XmlProvider<xml> I'm using NuGet to get the library. Library is 'FSharp.Data 1.1.8' When I type FSharp.Data. There are four options given: Csv , FreebaseOperators , Json , and RuntimeImplementation . Am I missing something? I'm

问题 How to fix the code? Is the inline/Statically Resolved Type the same powerful as structural typing? The type 'XmlProvider<...>.Parameter' does not support the operator 'get_Value'? let input1 = """<r1><parameters><parameter name="token">1</parameter><parameter name="other">xxx</parameter></parameters><othersOf1>..sample....</othersOf1></r1>""" let xml1 = XmlProvider<"""<r1><parameters><parameter name="token">1</parameter><parameter name="other">xxx</parameter></parameters><othersOf1>...<

问题 I am creating a program that reads football matches from different CSV files. The columns I am interested in are present in all the files, but the files have a varying number of columns. This left me creating a separate mapping function for each variation of file, with a different sample for each type: type GamesFile14 = CsvProvider<"./data/sample_14.csv"> type GamesFile15 = CsvProvider<"./data/sample_15.csv"> type GamesFile1617 = CsvProvider<"./data/sample_1617.csv"> let mapRows14 (rows:seq

问题 I am trying to build a TypeProvider where nested ProvidedProperty is generated based on parent's type value. A result I want to have is following #r @"bin/Debug/library.dll" open Library.TypeProviders type sdmx = SdmxDataProvider<WsEntryPoint=""> let dataflows = sdmx.GetDataFlowsContext() let a = dataflows.A.A1 // A1,A2,A3 < should be generated based on A let b = dataflows.B.B1 // B1,B2,B3 < should be generated based on B let c = dataflows.C.C1 // C1,C2,C3 < should be generated based on C I

问题 FAOCropsLivestock.csv contains more than 14 million row. In my .fs file I have declared type FAO = CsvProvider<"c:\FAOCropsLivestock.csv"> and tried to work with follwoing code FAO.GetSample().Rows.Where(fun x -> x.Country = country) |> .... FAO.GetSample().Filter(fun x -> x.Country = country) |> .... In both cases, exception was thrown. I also have tried with follwoing code after loading the csv file in MSSQL Server type Schema = SqlDataConnection<conStr> let db = Schema.GetDataContext() db

问题 This is a follow-up to my post yesterday. To recap, I received this error message when trying to build my project: FSC: Error FS2024: Static linking may not use assembly that targets different profile I consulted some kind people in the F# fpchat.com channel, and one of them suggested that the error could be due to the fact that I did not have Profile 47, because FSharp.Data uses Profile 47. I tried downloading the target pack for Profile 47, but was redirected to the Microsoft homepage

问题 Is it possible to get property from JSON using complex path, like "prop1.prop2" ? Sample of JSON I used: { "prop1": { "prop2": "value" } } What I have want is to get property "prop2" there with its value "value" : When I tried: #r "../packages/FSharp.Data.2.3.0/lib/net40/FSharp.Data.dll" open FSharp.Data open FSharp.Data.JsonExtensions let json = JsonValue.Load "SampleJson.json" json.GetProperty("prop1.prop2") I got: System.Exception: Didn't find property 'prop1.prop2' in {"prop1":{"prop2":

问题 I'm using FSharp.Data.1.1.10 in a .NET 4.0 project, and when I add FSharp.Data with Nuget, it creates a packages\FSharp.Data.1.1.10\lib\net40 directory where it puts FSharp.Data.dll and FSharp.Data.DesignTime.dll . According to Telerik JustDecompile, FSharp.Data.dll is a .NET 4.0 dll, but FSharp.Data.DesignTime.dll is a .NET 4.5 dll even though it resides in the net40 subdirectory. So, is FSharp.Data.DesignTime .NET 4.5 only, or is this a bug? 回答1: Yes, FSharp.Data.DesignTime is .NET 4.5, but