Merge pull request #57511 from craigshoemaker/crs-func-csharp-ref

Update project.json to project.csproj

Author: PRMerger15

articles/azure-functions/functions-reference-csharp.md

@@ -372,34 +372,27 @@ For information on how to upload files to your function folder, see the section
 The directory that contains the function script file is automatically watched for changes to assemblies. To watch for assembly changes in other directories, add them to the `watchDirectories` list in [host.json](functions-host-json.md).
 
 ## Using NuGet packages
-
-To use NuGet packages in a C# function, upload a *project.json* file to the function's folder in the function app's file system. Here is an example *project.json* file that adds a reference to Microsoft.ProjectOxford.Face version 1.1.0:
-
-```json
-{
-  "frameworks": {
-    "net46":{
-      "dependencies": {
-        "Microsoft.ProjectOxford.Face": "1.1.0"
-      }
-    }
-   }
-}
+To use NuGet packages in a C# function, upload a *extensions.csproj* file to the function's folder in the function app's file system. Here is an example *extensions.csproj* file that adds a reference to *Microsoft.ProjectOxford.Face* version *1.1.0*:
+
+```xml
+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <TargetFramework>net46</TargetFramework>
+    </PropertyGroup>
+    
+    <ItemGroup>
+        <PackageReference Include="Microsoft.ProjectOxford.Face" Version="1.1.0" />
+    </ItemGroup>
+</Project>
 ```
 
-In Azure Functions 1.x, only the .NET Framework 4.6 is supported, so make sure that your *project.json* file specifies `net46` as shown here.
-
-When you upload a *project.json* file, the runtime gets the packages and automatically adds references to the package assemblies. You don't need to add `#r "AssemblyName"` directives. To use the types defined in the NuGet packages; just add the required `using` statements to your *run.csx* file. 
-
-In the Functions runtime, NuGet restore works by comparing `project.json` and `project.lock.json`. If the date and time stamps of the files **do not** match, a NuGet restore runs and NuGet downloads updated packages. However, if the date and time stamps of the files **do** match, NuGet does not perform a restore. Therefore, `project.lock.json` should not be deployed, as it causes NuGet to skip package restore. To avoid deploying the lock file, add the `project.lock.json` to the `.gitignore` file.
-
 To use a custom NuGet feed, specify the feed in a *Nuget.Config* file in the Function App root. For more information, see [Configuring NuGet behavior](/nuget/consume-packages/configuring-nuget-behavior).
 
-### Using a project.json file
+### Using a extensions.csproj file
 
 1. Open the function in the Azure portal. The logs tab displays the package installation output.
-2. To upload a project.json file, use one of the methods described in the [How to update function app files](functions-reference.md#fileupdate) in the Azure Functions developer reference topic.
-3. After the *project.json* file is uploaded, you see output like the following example in your function's streaming log:
+2. To upload a *extensions.csproj* file, use one of the methods described in the [How to update function app files](functions-reference.md#fileupdate) in the Azure Functions developer reference topic.
+3. After the *extensions.csproj* file is uploaded, you see output like the following example in your function's streaming log:
 
 ```
 2016-04-04T19:02:48.745 Restoring packages.
@@ -409,7 +402,7 @@ To use a custom NuGet feed, specify the feed in a *Nuget.Config* file in the Fun
 2016-04-04T19:02:50.261 C:\DWASFiles\Sites\facavalfunctest\LocalAppData\NuGet\Cache
 2016-04-04T19:02:50.261 https://api.nuget.org/v3/index.json
 2016-04-04T19:02:50.261
-2016-04-04T19:02:50.511 Restoring packages for D:\home\site\wwwroot\HttpTriggerCSharp1\Project.json...
+2016-04-04T19:02:50.511 Restoring packages for D:\home\site\wwwroot\HttpTriggerCSharp1\extensions.csproj...
 2016-04-04T19:02:52.800 Installing Newtonsoft.Json 6.0.8.
 2016-04-04T19:02:52.800 Installing Microsoft.ProjectOxford.Face 1.1.0.
 2016-04-04T19:02:57.095 All packages are compatible with .NETFramework,Version=v4.6.