razor-csharp

page_type	description	products	languages	extensions	urlFragment
sample	This quickstart guide shows how to create custom channel and group tabs for Microsoft Teams with ASP.NET Core and Razor Pages. It covers the complete setup process, including manifest configuration and local testing using tools like Ngrok and the Teams Toolkit for Visual Studio.	office-teams office office-365	csharp	contentType createdDate samples 07/07/2021 01:38:27 PM	officedev-microsoft-teams-samples-tab-channel-group-razor-csharp

Channel and group tabs in ASP.NET Core with Razor pages

Explore how to create custom channel and group tabs for Microsoft Teams using ASP.NET Core and Razor pages in this comprehensive sample application. This guide provides detailed steps for setting up your development environment, configuring the app manifest, and testing the integration with local tunneling solutions like Ngrok, enabling seamless interaction within Teams.

Included Features

• Tabs

Interaction with app

Try it yourself - experience the App in your Microsoft Teams client

Please find below demo manifest which is deployed on Microsoft Azure and you can try it yourself by uploading the app manifest (.zip file link below) to your teams and/or as a personal app. (Sideloading must be enabled for your tenant, see steps here).

Channel and group tabs in ASP.NET Core with MVC: Manifest

Prerequisites

• .NET Core SDK version 6.0

  determine dotnet version

  dotnet --version

• dev tunnel or Ngrok (For local environment testing) latest version (any other tunneling software can also be used)

• Teams Microsoft Teams is installed and you have an account

• Teams Toolkit for Visual Studio

Run the app (Using Teams Toolkit for Visual Studio)

The simplest way to run this sample in Teams is to use Teams Toolkit for Visual Studio.

1. Install Visual Studio 2022 Version 17.10 Preview 4 or higher Visual Studio
2. Install Teams Toolkit for Visual Studio Teams Toolkit extension
3. In the debug dropdown menu of Visual Studio, select default startup project > Microsoft Teams (browser)
4. In Visual Studio, right-click your TeamsApp project and Select Teams Toolkit > Prepare Teams App Dependencies
5. Using the extension, sign in with your Microsoft 365 account where you have permissions to upload custom apps.
6. Select Debug > Start Debugging or F5 to run the menu in Visual Studio.
7. In the browser that launches, select the Add button to install the app to Teams.

If you do not have permission to upload custom apps (sideloading), Teams Toolkit will recommend creating and using a Microsoft 365 Developer Program account - a free program to get your own dev environment sandbox that includes Teams.

Setup

1. Run ngrok - point to port 3978

   ngrok http 3978 --host-header="localhost:3978"

   Alternatively, you can also use the dev tunnels. Please follow Create and host a dev tunnel and host the tunnel with anonymous user access command as shown below:

   devtunnel host -p 3978 --allow-anonymous

2. Clone the repository

   git clone https://github.com/OfficeDev/Microsoft-Teams-Samples.git

3. If you are using Visual Studio

• Launch Visual Studio
• File -> Open -> Project/Solution
• Navigate to samples\tab-channel-group\razor-csharp folder
• Select ChannelGroupTab.sln file and open the solution

4. Modify the manifest.json in the /appPackage folder and replace the following details:

   • <> with any random GUID.
   • <<Base-url>> with base Url domain. E.g. if you are using ngrok it would be https://1234.ngrok-free.app then your domain-name will be 1234.ngrok-free.app and if you are using dev tunnels then your domain will be like: 12345.devtunnels.ms.
   • validDomains with base Url domain. E.g. if you are using ngrok it would be https://1234.ngrok-free.app then your domain-name will be 1234.ngrok-free.app and if you are using dev tunnels then your domain will be like: 12345.devtunnels.ms.

5. Upload the manifest.zip to Teams (in the Apps view click "Upload a custom app")

   • Go to Microsoft Teams. From the lower left corner, select Apps
   • From the lower left corner, choose Upload a custom App
   • Go to your project directory, the ./appPackage folder, select the zip folder, and choose Open.

Running the sample

Further Reading

Tab-channel-group Create a Custom Channel and Group Tab with ASP.NET Core and MVC