VBHelloWorld

Visual Basic Sample Application

This sample demonstrates how to use Visual Basic to write grain code. The sample consists of three projects:

• Interfaces - a Visual Basic project containing a grain interface, IHelloGrain
• Grains - a Visual Basic projects with a class, HelloGrain, which implements IHelloGrain
• HelloWorld - A C# project to host the grains

The Microsoft.Orleans.CodeGenerator.MSBuild package does not support emitting Visual Basic code, however it supports analyzing Visual Basic assemblies and emitting C# code. Therefore, this sample works by instructing the code generator to analyze the Grains project when it is generating code for the HelloWorld project. This is accomplished using the following directive in HelloWorld's Program.cs file:

[assembly: KnownAssembly(typeof(IHelloGrain))]
[assembly: KnownAssembly(typeof(HelloGrain))]

With the above attribute in place, the code generator analyzes the F# assembly and emits C# code into the HelloWorld project.

Run the sample by executing the following command:

dotnet run --project HelloWorld