.net-core

问题 When I run the Entitfy framework core command add-migration MyMigrationName in a class library I get the following error Could not load file or assembly 'Microsoft.AspNetCore.Hosting.Abstractions, Version=1.1.1.0, Culture=neutral, PublicKeyToken=adb9793829ddae60' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) Funny thing there is no reference in my application to Abstractions. Here is my csproj

问题 I need to be sure that a method accessed via a web API cannot be accessed by multiple call at the same time if it work on the same object with the same id I understand the use of SemaphoreSlim but a simple implemetation of that will lock the critical section for all. But I need that section locked only if it works on the same entity and not on 2 different This is my scenario, an user start to work, the entity is created and is ready to be modified, then one or more user can manipulate this

问题 I trying setting up dotnet application with Docker. Dockerfile in "backend" folder: FROM microsoft/dotnet:1.1-sdk AS build-env WORKDIR /app COPY *.csproj ./ RUN dotnet restore COPY . ./ RUN dotnet publish -c Release -o out FROM microsoft/dotnet:1.1-runtime WORKDIR /app COPY --from=build-env /app/out ./ CMD ["dotnet", "backend.dll"] Dockerfile in "frontend" folder: # build FROM node AS build-env WORKDIR /usr/src/app COPY package.json /usr/src/app/ RUN npm install COPY . /usr/src/app/ RUN npm

问题 I trying setting up dotnet application with Docker. Dockerfile in "backend" folder: FROM microsoft/dotnet:1.1-sdk AS build-env WORKDIR /app COPY *.csproj ./ RUN dotnet restore COPY . ./ RUN dotnet publish -c Release -o out FROM microsoft/dotnet:1.1-runtime WORKDIR /app COPY --from=build-env /app/out ./ CMD ["dotnet", "backend.dll"] Dockerfile in "frontend" folder: # build FROM node AS build-env WORKDIR /usr/src/app COPY package.json /usr/src/app/ RUN npm install COPY . /usr/src/app/ RUN npm

问题 I'm developing an API and it has two Controllers: PicturesController and AccountController . There's a method on PicturesController that returns an image and I'd like to know how to get its URL. On another PicturesController method, I got the URL using the code bellow: var url = Url.RouteUrl("GetPicture", new { id = picture.Id }, Request.Scheme); But I need to get the URL of the same method, however from another controller ( AccountController ). I tried the following code, but it results null

问题 Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 1 year ago . Improve this question I'm trying to build a .NET Core server that uses a HTTPS connection. I created a self-signed certificate using dotnet dev-certs tool and set up Kestrel like this: return WebHost.CreateDefaultBuilder(args) .UseKestrel(options => { options.Listen(IPAddress

问题 I wrote this function to retrieve all Administrators Members SIDs: private IList<byte[]> GetAdministratorsMembersSIDs() { IList<byte[]> adminMembers = new List<byte[]>(); SecurityIdentifier id = new SecurityIdentifier(administratorsSid); string name = id.Translate(typeof(NTAccount)).Value.Split('\\')[1]; using (DirectoryEntry adminGroupEntry = new DirectoryEntry(string.Format("WinNT://./{0},group", name))) { foreach (object member in (IEnumerable)adminGroupEntry.Invoke("Members")) { using

问题 I wrote this function to retrieve all Administrators Members SIDs: private IList<byte[]> GetAdministratorsMembersSIDs() { IList<byte[]> adminMembers = new List<byte[]>(); SecurityIdentifier id = new SecurityIdentifier(administratorsSid); string name = id.Translate(typeof(NTAccount)).Value.Split('\\')[1]; using (DirectoryEntry adminGroupEntry = new DirectoryEntry(string.Format("WinNT://./{0},group", name))) { foreach (object member in (IEnumerable)adminGroupEntry.Invoke("Members")) { using

问题 I am try to generate PDF from html sql server database using DinkToPdf library. In the Startup file I have added var context = new CustomAssemblyLoadContext(); context.LoadUnmanagedLibrary(Path.Combine(Directory.GetCurrentDirectory(), "libwkhtmltox.dll")); The line gives me error on launching the web app DllNotFoundException: Unable to load DLL 'C:\Program Files\IIS Express\libwkhtmltox.dll' or one of its dependencies: The specified module could not be found. (Exception from HRESULT:

问题 In the .net framework there were Code Contracts which allowed me to specify pre/post conditons in my code. Are they supported in .net core/.net 5? 回答1: Namespace System.Diagnostics.Contracts is available but project is abadoned . Alternative VS2019 https://softwarerecs.stackexchange.com/questions/47108/the-best-code-contracts-alternative-for-vs-2017-2019-and-net-core-projects Discussion about .Net Core https://github.com/dotnet/runtime/issues/23869 Is Code Contracts still the recommended way