I am simply trying to use the ConfigurationManager within an F# project but I am getting the error:
This value is not a function and cannot be applied
here is the code:
open System.Configuration
let connectionString = ConfigurationManager.ConnectionStrings["ManagementDb"].ConnectionString
I have also referenced the System.Configuration library.
I haven't verified this in Visual Studio, but usually there is a dot ('.') when using an F# index.
i.e.
let connectionString = ConfigurationManager.ConnectionStrings.["ManagementDb"].ConnectionString
I am having trouble loading the csv files with FSharp.Data csv provider provided by fslab, including the sample adwords.csv file.
What does this error below mean? Also, when I hover over the code in the Visual studio editor it mentions that "The given key was not present in the dictionary"
Problem example:
#load "packages/FsLab/FsLab.fsx"
open System.IO
open FSharp.Data
"adwords.csv"
|> File.ReadAllLines
let test = CsvProvider<"adwords.csv">.GetSample()
The output:
>
val it : string [] =
[|"Criteria ID,Name,Canonical Name,Parent ID,Country Code,Target Type,Status";
"1000010,Abu Dhabi,"Abu Dhabi,Abu Dhabi,United Arab Emirates",9041082,AE,City,Active";
"1000011,Ajman,"Ajman,Ajman,United Arab Emirates",9047096,AE,City,Active";
"1000012,Al Ain,"Al Ain,Abu Dhabi,United Arab Emirates",9041082,AE,City,Active";
"1000013,Dubai,"Dubai,Dubai,United Arab Emirates",9041083,AE,City,Active";
"2004,Afghanistan,Afghanistan,,AF,Country,Active"|]
>
>System.MethodAccessException: Attempt by method '<StartupCode$FSI_0007>.$FSI_0007.main#()' to access method 'FSharp.Data.Runtime.CsvFile`1<System.__Canon>.Create(System.Func`3<System.Object,System.String[],System.__Canon>,
at <StartupCode$FSI_0007>.$FSI_0007.main#() in C:\test.fsx:line 11
Stopped due to error
I ran into this problem with my own files, so I grabbed this sample file from here: https://raw.githubusercontent.com/fsharp/FSharp.Data/master/tests/FSharp.Data.Tests/Data/Adwords.csv
Debug info:
If I delete the FSharp.Data library folder (v 2.3.0) and replace with version 2.2.5 it works correctly with no error.
If I don't use the FsLab.fsx script and instead use
#I "packages/FSharp.Data/lib/net40
#r "FSharp.Data.dll"
then everything works.
The path to the FsLab.fsx script is correct, it runs when I send the line to fsi.
The F# version is 14.0.23413.0.
The version of FSharp.Data downloaded by FSlab is FSharp.Data.2.3.0.
I have no other references in the .fsx script.
I am using Visual Studio Community edition 14.0.24720.00 Update 1.
.NET version 4.6.01038
I am realizing now that I am not getting the popup asking if I want to allow the .dll like I think I used to get when I used this before.
There is nothing wrong with the file. This for example works:
#load #"..\..\FSLAB\packages\FsLab\FsLab.fsx"
open System.IO
open FSharp.Data
[<Literal>]
let csvFile = #"C:\tmp\adwords.csv"
File.Exists csvFile
type Csv = CsvProvider<csvFile>
let csv = Csv.Load(csvFile)
csv.Rows
There is something wrong with your FsLab of FSharp.Data installation or type providers security maybe. Try the following, specify the path to the file directly. If it still doesn't work just nuget FSharp.Data and try using the csv type provider directly in a new project.
Other info is also helpful. VS version, FSLab version, wha other references you have. etc.
EDIT: Thanks for the debug info. That's actually quite helpful. VS2015 Update 1 broke two things, the Binding Redirect for Fsharp and the type providers (that might have been FSharp Tools, I forgot). I would upgrade to Update 2. If that's not possible please check if your FSharp.Data.TypeProviders.dll is in C:\Program Files (x86)\Reference Assemblies\Microsoft\FSharp\.NETFramework\v4.0\4.3.0.0\Type Providers.
As referencing the dlls directly works, it's probably a version mismatch issue. My FsLab install predates VS2015 Update 1 and 2, so will see if it behaves differently with a new download.
There is some issue with the installation of FSharp.Data currently bundled with FsLab (as of June 2016). This issue is with version 2.3.0. If you instead use FSharp.Data 2.2.5 the code works as expected.
Delete the packages/FSharp.Data folder and replace with version 2.2.5. I did it from an old installation but you could do it from Nuget
Does TChart lite component included in RAD Studio XE4 environment support GDI+ rendering or not ? Feature matrix doesnt tak about it.
http://www.steema.com/featurematrix/vcl
Searching in installation directory I found file VCLTee.TeeGDIPlus.hpp containing declaration of class TGDIPlusCanvas.
If yes then how to enable it ?
To activate GDIPlus in C++Builder applications, add the header to the .h:
#include <VclTee.TeeGDIPlus.hpp>
And then create the Canvas directly:
Chart1->Canvas = new TGDIPlusCanvas();
or through a variable:
TGDIPlusCanvas *myGDIPlus = new TGDIPlusCanvas();
Chart1->Canvas = myGDIPlus;
I'm trying to write some Office automation code and I cannot get IntelliSense help for the PIA Office types. The strange thing is that it works fine in C# and also in the Tutorial.vs2010 F# Solution with some of the same code.
I'm using VS10 and PIA for Office 14.
VS
Any ideas?
I forgot to include a reference to Office.dll. That appeared to fix the issue.
For anyone finding this later, but can't figure out where office.dll is, like I did. I faced the same Issue with F# 4.0, Office 2013, and VS Community 2015 Update 2.0
I typed this in the beginning of the file to get Intellisense working, no need to search for office.dll in your machine:
#r "office, Version = 15.0.0.0"
This is the same text it gives you with <Note>, but without the Culture=neutral and PublicKey=w/e. Seems to work flawlessly.
For context, this is how my file starts:
#r "Microsoft.Office.Interop.Excel"
#r "office, Version = 15.0.0.0"
open System
open System.IO
open System.Reflection
open Microsoft.Office.Interop.Excel
let app = ApplicationClass(Visible = true)
let sheet = app.Workbooks
.Add()
.Worksheets.[1] :?> _Worksheet
I've been trying to port some Windows Phone 7 code between Silverlight to XNA which relies on IsolatedStorageSettings but I can't get Visual Studio to resolve it. When I have a look at what Intellisense is resolving under System.IO.IsolatedStorage & it lists IsolatedStorageFile, IsolatedStorageException & IsolatedStorageStream.
The documentation says that the supported version is for Silverlight but I don't understand why I am seeing the difference because of the project types.
http://msdn.microsoft.com/query/dev10.query?appId=Dev10IDEF1&l=EN-US&k=k(SYSTEM.IO.ISOLATEDSTORAGE.ISOLATEDSTORAGESETTINGS);k(ISOLATEDSTORAGESETTINGS);k(TargetFrameworkMoniker-%22SILVERLIGHT,VERSION%3dV4.0%22);k(DevLang-CSHARP)&rd=true
Thanks
The following work for me in an XNA project with no extra project references:
using (var store = IsolatedStorageFile.GetUserStoreForApplication())
{
store.CreateFile("folder/file.ext");
}
After adding a reference to System.Windows.dll I can then do:
var settings = IsolatedStorageSettings.ApplicationSettings;
settings.Add("something", "myValue");
settings.Save();
If you can't get the above working, can you post an example of what you're trying.