How to add external assembly (.dll) to .NET Core 2.0 on Visual Studio Code

How to add external assembly (.dll) to .NET Core 2.0 on Visual Studio Code

To add an external assembly (.dll) to a .NET Core 2.0 project in Visual Studio Code, you can follow these steps:

  1. In your Visual Studio Code project folder, create a new folder called "lib" (short for "libraries") at the same level as the "src" folder.

  2. Copy the external assembly (.dll) file that you want to use into the "lib" folder.

  3. In your project's .csproj file, add a reference to the external assembly by adding the following element inside the <ItemGroup> element:

<Reference Include="MyExternalAssembly">
  <HintPath>..\lib\MyExternalAssembly.dll</HintPath>
</Reference>

Replace "MyExternalAssembly" with the name of the external assembly, and "MyExternalAssembly.dll" with the filename of the assembly.

  1. Save the .csproj file and reload the project in Visual Studio Code.

  2. Build and run your project. The external assembly should now be available to your code.

Note that if the external assembly has any dependencies that are not included with the .NET Core 2.0 runtime, you will also need to add references to those dependencies using the same <Reference> element in the .csproj file. You may also need to copy the dependent assemblies to the "lib" folder and modify the <HintPath> element to match the relative path to the dependent assembly.

Examples

  1. "Add external DLL reference in .NET Core 2.0 project.json"

    Code:

    // project.json
{
    "dependencies": {
        "ExternalLibrary": {
            "version": "1.0.0",
            "type": "assembly",
            "path": "path/to/ExternalLibrary.dll"
        }
    },
    "frameworks": {
        "netcoreapp2.0": {
            "dependencies": {
                "Microsoft.NETCore.App": {
                    "type": "platform",
                    "version": "2.0.0"
                }
            }
        }
    }
}

    Description: This code snippet shows how to reference an external DLL in a .NET Core 2.0 project using the project.json file.

  2. "Add external DLL reference in .NET Core 2.0 csproj"

    Code:

    <!-- YourProject.csproj -->
<Project Sdk="Microsoft.NET.Sdk">

    <PropertyGroup>
        <OutputType>Exe</OutputType>
        <TargetFramework>netcoreapp2.0</TargetFramework>
    </PropertyGroup>

    <ItemGroup>
        <Reference Include="ExternalLibrary">
            <HintPath>path/to/ExternalLibrary.dll</HintPath>
        </Reference>
    </ItemGroup>

</Project>

    Description: This code snippet shows how to reference an external DLL in a .NET Core 2.0 project using the csproj file.

  3. ".NET Core 2.0 Visual Studio Code add reference to external assembly"

    Code:

    • Add the DLL to your project folder.
    • Modify project.json or csproj as shown in previous examples.

    Description: This query emphasizes using Visual Studio Code to manually add a reference to an external assembly by modifying project files.

  4. "How to use external DLL in .NET Core 2.0 project"

    Code:

    • Add DLL to project folder.
    • Reference DLL in project.json or csproj as shown in previous examples.
    • Use the types from the external DLL in your code.

    Description: This is a general guide on using an external DLL in a .NET Core 2.0 project.

  5. "Load external assembly dynamically in .NET Core 2.0"

    Code:

    var assemblyPath = "path/to/ExternalLibrary.dll";
var assembly = AssemblyLoadContext.Default.LoadFromAssemblyPath(assemblyPath);

    Description: This code snippet shows how to dynamically load an external assembly in .NET Core 2.0 using AssemblyLoadContext.

  6. "Use external NuGet package in .NET Core 2.0 project"

    Code:

    • Add the NuGet package reference in project.json or csproj.
    • Use the types from the NuGet package in your code.

    Description: This query is relevant when you prefer using NuGet packages over external DLLs.

  7. ".NET Core 2.0 VS Code add external assembly to build process"

    Code:

    • Add DLL to project folder.
    • Modify project.json or csproj as shown in previous examples.
    • Ensure the DLL is copied to the output directory during the build.

    Description: This emphasizes adding an external assembly to the build process in Visual Studio Code.

  8. ".NET Core 2.0 manually copy DLL to output directory"

    Code:

    • Add a post-build script in your project to copy the DLL manually.
    "scripts": {
    "postbuild": "cp path/to/ExternalLibrary.dll bin/Debug/netcoreapp2.0/"
}

    Description: This shows how to manually copy an external DLL to the output directory after the build.

  9. ".NET Core 2.0 Visual Studio Code manage external dependencies"

    Code:

    • Use Visual Studio Code's integrated terminal to execute commands related to managing external dependencies.
    • Manually copy DLLs or modify project files as needed.

    Description: This emphasizes using Visual Studio Code's tools to manage external dependencies.

  10. "Debug .NET Core 2.0 project with external DLL in Visual Studio Code"

    Code:

    • Ensure the DLL is properly referenced in the project.
    • Set breakpoints and debug as usual.

    Description: This query focuses on debugging a .NET Core 2.0 project that uses an external DLL in Visual Studio Code.

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