Profile (c) Citigroup, Inc. Is a holding company, which engages in the provision of financial products and services. It operates through the following segments: Global Consumer Banking. Is there a way to set up an entry point for a C# project in Visual Studio Code? C# visual-studio visual-studio-code csproj. Improve this question. Follow edited Jul 31 '20 at 22:31. Peter Mortensen. 28k 21 21 gold badges 94 94 silver badges 123 123 bronze badges. Asked Nov 7 '17 at 7:44. C or Do is the first note of the C major scale, the third note of the A minor scale (the relative minor of C major), and the fourth note (F, A, B, C) of the Guidonian hand, commonly pitched around 261.63 Hz.

In this article, you use Visual Studio Code to create a C# class library-based function that responds to HTTP requests. After testing the code locally, you deploy it to the serverless environment of Azure Functions.

Completing this quickstart incurs a small cost of a few USD cents or less in your Azure account.

There's also a CLI-based version of this article.

Configure your environment

Before you get started, make sure you have the following requirements in place:

• An Azure account with an active subscription. Create an account for free.

• The Azure Functions Core Tools version 3.x.

• Visual Studio Code on one of the supported platforms.

• The C# extension for Visual Studio Code.

• The Azure Functions extension for Visual Studio Code.

Create your local project

In this section, you use Visual Studio Code to create a local Azure Functions project in C#. Later in this article, you'll publish your function code to Azure.

1. Choose the Azure icon in the Activity bar, then in the Azure: Functions area, select the Create new project... icon.

2. Choose a directory location for your project workspace and choose Select.

   Note

   These steps were designed to be completed outside of a workspace. In this case, do not select a project folder that is part of a workspace.

3. Provide the following information at the prompts:

   • Select a language for your function project: Choose C#.

   • Select a template for your project's first function: Choose HTTP trigger.

   • Provide a function name: Type HttpExample.

   • Provide a namespace: Type My.Functions.

   • Authorization level: Choose Anonymous, which enables anyone to call your function endpoint. To learn about authorization level, see Authorization keys.

   • Select how you would like to open your project: Choose Add to workspace.

4. Using this information, Visual Studio Code generates an Azure Functions project with an HTTP trigger. You can view the local project files in the Explorer. To learn more about files that are created, see Generated project files.

Run the function locally

Visual Studio Code integrates with Azure Functions Core tools to let you run this project on your local development computer before you publish to Azure.

1. To call your function, press F5 to start the function app project. Output from Core Tools is displayed in the Terminal panel. Your app starts in the Terminal panel. You can see the URL endpoint of your HTTP-triggered function running locally.

   If you have trouble running on Windows, make sure that the default terminal for Visual Studio Code isn't set to WSL Bash.

2. With Core Tools running, go to the Azure: Functions area. Under Functions, expand Local Project > Functions. Right-click (Windows) or Ctrl - click (macOS) the HttpExample function and choose Execute Function Now....

3. In Enter request body you see the request message body value of { 'name': 'Azure' }. Press Enter to send this request message to your function.

   You could have instead sent an HTTP GET request to the http://localhost:7071/api/HttpExample address in a web browser.

4. When the function executes locally and returns a response, a notification is raised in Visual Studio Code. Information about the function execution is shown in Terminal panel.

5. Press Ctrl + C to stop Core Tools and disconnect the debugger.

After you've verified that the function runs correctly on your local computer, it's time to use Visual Studio Code to publish the project directly to Azure.

Sign in to Azure

Before you can publish your app, you must sign in to Azure.

1. If you aren't already signed in, choose the Azure icon in the Activity bar, then in the Azure: Functions area, choose Sign in to Azure.... If you don't already have one, you can Create a free Azure account. Students can create a free Azure account for Students.

   If you're already signed in, go to the next section.

2. When prompted in the browser, choose your Azure account and sign in using your Azure account credentials.

3. After you've successfully signed in, you can close the new browser window. The subscriptions that belong to your Azure account are displayed in the Side bar.

Publish the project to Azure

In this section, you create a function app and related resources in your Azure subscription and then deploy your code.

Important

Publishing to an existing function app overwrites the content of that app in Azure.

1. Choose the Azure icon in the Activity bar, then in the Azure: Functions area, choose the Deploy to function app... button.

2. Provide the following information at the prompts:

   • Select folder: Choose a folder from your workspace or browse to one that contains your function app. You won't see this if you already have a valid function app opened.

   • Select subscription: Choose the subscription to use. You won't see this if you only have one subscription.

   • Select Function App in Azure: Choose - Create new Function App. (Don't choose the Advanced option, which isn't covered in this article.)

   • Enter a globally unique name for the function app: Type a name that is valid in a URL path. The name you type is validated to make sure that it's unique in Azure Functions.

   • Select a location for new resources: For better performance, choose a region near you.

   The extension shows the status of individual resources as they are being created in Azure in the notification area.

3. When completed, the following Azure resources are created in your subscription, using names based on your function app name:

   • A resource group, which is a logical container for related resources.
   • A standard Azure Storage account, which maintains state and other information about your projects.
   • A consumption plan, which defines the underlying host for your serverless function app.
   • A function app, which provides the environment for executing your function code. A function app lets you group functions as a logical unit for easier management, deployment, and sharing of resources within the same hosting plan.
   • An Application Insights instance connected to the function app, which tracks usage of your serverless function.

   A notification is displayed after your function app is created and the deployment package is applied.

   Tip

   By default, the Azure resources required by your function app are created based on the function app name you provide. By default, they are also created in the same new resource group with the function app. If you want to either customize the names of these resources or reuse existing resources, you need to instead publish the project with advanced create options.

4. Select View Output in this notification to view the creation and deployment results, including the Azure resources that you created. If you miss the notification, select the bell icon in the lower right corner to see it again.

Run the function in Azure

1. Back in the Azure: Functions area in the side bar, expand your subscription, your new function app, and Functions. Right-click (Windows) or Ctrl - click (macOS) the HttpExample function and choose Execute Function Now....

2. In Enter request body you see the request message body value of { 'name': 'Azure' }. Press Enter to send this request message to your function.

3. When the function executes in Azure and returns a response, a notification is raised in Visual Studio Code.

Clean up resources

When you continue to the next step and add an Azure Storage queue binding to your function, you'll need to keep all your resources in place to build on what you've already done.

Otherwise, you can use the following steps to delete the function app and its related resources to avoid incurring any further costs.

1. In Visual Studio Code, press F1 to open the command palette. In the command palette, search for and select Azure Functions: Open in portal.

2. Choose your function app, and press Enter. The function app page opens in the Azure portal.

3. In the Overview tab, select the named link next to Resource group.

4. In the Resource group page, review the list of included resources, and verify that they are the ones you want to delete.

5. Select Delete resource group, and follow the instructions.

   Deletion may take a couple of minutes. When it's done, a notification appears for a few seconds. You can also select the bell icon at the top of the page to view the notification.

To learn more about Functions costs, see Estimating Consumption plan costs.

Next steps

You have used Visual Studio Code to create a function app with a simple HTTP-triggered function. In the next article, you expand that function by connecting to either Azure Cosmos DB or Azure Storage. To learn more about connecting to other Azure services, see Add bindings to an existing function in Azure Functions.

C# for Visual Studio Code (powered by OmniSharp)

Welcome to the C# extension for Visual Studio Code! This extension provides the following features inside VS Code:

• Lightweight development tools for .NET Core.
• Great C# editing support, including Syntax Highlighting, IntelliSense, Go to Definition, Find All References, etc.
• Debugging support for .NET Core (CoreCLR). NOTE: Mono debugging is not supported. Desktop CLR debugging has limited support.
• Support for project.json and csproj projects on Windows, macOS and Linux.

The C# extension is powered by OmniSharp.

Get Started Writing C# in VS Code

Note about using .NET Core 3.1.40x SDKs

The .NET 3.1.40x SDKs require version 16.7 of MSBuild.

For MacOS and Linux users who have Mono installed, this means you will need to set omnisharp.useGlobalMono to never until a version of Mono ships with MSBuild 16.7.

Note about using .NET 5 SDKs

The .NET 5 SDK requires version 16.8 of MSBuild.

For Windows users who have Visual Studio installed, this means you will need to be on the latest Visual Studio 16.8 Preview.For MacOS and Linux users who have Mono installed, this means you will need to set omnisharp.useGlobalMono to never until a version of Mono ships with MSBuild 16.8.

What's new in 1.23.11

• Move the global Mono check to the correct place (#4489, PR: #4492)

What's new in 1.23.10

• Support solution filters (*.slnf) (PR: #4481)
• Prompt user to install Blazor WASM companion extension if needed (PR: #4392)
• Add path to dotnet so child processes can use the CLI (PR: #4459)
• Give more information when Mono is missing or invalid. (#4428, PR: #4431)
• Revert incremental change forwarding (PR: #4477)
• Fixes to asset generation (PR: #4402)
• Add properties to blazorwasm debug configuration. (dotnet/aspnetcore#30977, PR: i#4445)
• Avoid white status bar items to ensure contrast (#4384, PR: #4385)
• Update OmniSharp to 1.37.8
  • Update Roslyn version to 3.10.0-1.21125.6 (PR: omnisharp-roslyn#2105)
  • Update included build tools to closely match NET 6 Preview 1 SDK (PR: omnisharp-roslyn#2103)
  • Improve custom error messages for MSB3644 (PR: omnisharp-roslyn#2097)
  • Do not call FindReferencesAsync for null symbol (omnisharp-roslyn#2054, PR: omnisharp-roslyn#2089)
  • use an OmniSharp specific message for MSB3644 (omnisharp-roslyn#2029, PR: omnisharp-roslyn#2069)
  • changed the default RunFixAllRequest timeout to 10 seconds (PR: omnisharp-roslyn#2066)
  • Support Solution filter (.slnf) (PR: omnisharp-roslyn#2121)
  • updated to IL Spy 7.0.0.6372 (PR: omnisharp-roslyn#2113)
  • Add sentinel file to MSBuild to enable workload resolver (#4417, PR: omnisharp-roslyn#2111)
  • fixed CS8605 'Unboxing possibly null value' (PR: omnisharp-roslyn#2108)
• Updated Razor support (PR: #4470)
  • Bug fixes

What's new in 1.23.9

Configure Visual Studio Code For C#

• Add option to organize imports during document formatting. (PR: #4302)
• Update to use zero based indexes (PR: #4300)
• Improve request queues to improve code completion performance (PR: #4310)
• Add setting to control whether to show the OmniSharp log on error (#4102, #4330, PR: #4333)
• Support building launch assets for NET6-NET9 projects (#4346, PR: #4349)
• Add debugger support for Concord extensions. See the ConcordExtensibilitySamples wiki for more information.
• Update OmniSharp version to 1.37.6
  • Handle records in syntax highlighting (#2048, PR: #2049)
  • Remove formatting on new line (PR: #2053)
  • Validate highlighting ranges in semantic highlighting requests (PR: #2055)
  • Delay project system init to avoid solution update race (PR: #2057)
  • Use 'variable' kind for parameter completion (#2060, PR: #2061)
  • Log request when response fails (#2064)

What's new in 1.23.8

• Updated Debugger support (PR: #4281)
  • Updated the version of .NET that the debugger uses for running its own C# code to .NET 5
  • Updated .NET debugging services loader to address problem with debugging after installing XCode12 (dotnet/runtime/#42311)
  • Fixed integrated terminal on non-Windows (#4203)
• Updated Razor support (PR: #4278)
  • Bug fixes
• Update OmniSharp version to 1.37.5 (PR: #4299)
  • Update Roslyn version to 3.9.0-2.20570.24 (PR: omnisharp-roslyn#2022)
  • Editorconfig improvements - do not lose state, trigger re-analysis on change (omnisharp-roslyn#1955, #4165, #4184, PR: omnisharp-roslyn#2028)
  • Add documentation comment creation to the FormatAfterKeystrokeService (PR: omnisharp-roslyn#2023)
  • Raise default GotoDefinitionRequest timeout from 2s to 10s (#4260, PR: omnisharp-roslyn#2032)
  • Workspace create file workaround (PR: omnisharp-roslyn#2019)
  • Added msbuild:UseBundledOnly option to force the usage of bundled MSBuild (PR: omnisharp-roslyn#2038)
• Support auto doc comment generation (#8, PR: #4261)
• Add schema support for appsettings.json (#4279, PR: #4280)
• Add schema support for global.json (PR: #4290)
• Update remoteProcessPickerScript windows ssh exit (#3482, PR: #4225)
• Do not start OmniSharp server in Live Share scenarios (#3910, PR: #4038)
• Suppress codelens for IEnumerable.GetEnumerator (#4245, PR: #4246)
• Allow arm64 MacOS to debug dotnet projects (#4277, PR: #4288)

Emmet support in Razor files

To enable emmet support, add the following to your settings.json:

Free Visual Basic Code Examples

Semantic Highlighting

The C# semantic highlighting support is in preview. To enable, set editor.semanticHighlighting.enabled and csharp.semanticHighlighting.enabled to true in your settings. Semantic highlighting is only provided for code files that are part of the active project.

To really see the difference, try the new Visual Studio 2019 Light and Dark themes with semantic colors that closely match Visual Studio 2019.

Supported Operating Systems for Debugging

• Currently, the C# debugger officially supports the following operating systems:

  • X64 operating systems:
    • Windows 7 SP1 and newer
    • macOS 10.12 (Sierra) and newer
    • Linux: see .NET Core documentation for the list of supported distributions. Note that other Linux distributions will likely work as well as long as they include glibc and OpenSSL.
  • ARM operating systems:
    • Linux is supported as a remote debugging target

Found a Bug?

To file a new issue to include all the related config information directly from vscode by entering the command pallette with Ctrl+Shift+P(Cmd+Shift+P on macOS) and running CSharp: Report an issue command. This will open a browser window with all the necessary information related to the installed extensions, dotnet version, mono version, etc. Enter all the remaining information and hit submit. More information can be found on the wiki.

Alternatively you could visit https://github.com/OmniSharp/omnisharp-vscode/issues and file a new one.

Development

First install:

• Node.js (8.11.1 or later)
• Npm (5.6.0 or later)

To run and develop do the following:

• Run npm i
• Run npm run compile
• Open in Visual Studio Code (code .)
• Optional: run npm run watch, make code changes
• Press F5 to debug

To test do the following: npm run test or F5 in VS Code with the 'Launch Tests' debug configuration.

License

Copyright © .NET Foundation, and contributors.

The Microsoft C# extension is subject to these license terms.The source code to this extension is available on https://github.com/OmniSharp/omnisharp-vscode and licensed under the MIT license.

Code of Conduct

This project has adopted the code of conduct defined by the Contributor Covenantto clarify expected behavior in our community.For more information see the .NET Foundation Code of Conduct.

Contribution License Agreement

By signing the CLA, the community is free to use your contribution to .NET Foundation projects.

.NET Foundation

This project is supported by the .NET Foundation.