[dotnet] Enable Nullable Reference Types

Author: RenderMichael

dotnet/src/webdriver/BUILD.bazel

@@ -37,6 +37,7 @@ csharp_library(
         "WebDriver.Common.Tests",
     ],
     langversion = "12.0",
+    nullable="annotations"
     resources = [
         "//javascript/atoms/fragments:find-elements.js",
         "//javascript/atoms/fragments:is-displayed.js",
@@ -76,6 +77,7 @@ csharp_library(
         "WebDriver.Common.Tests",
     ],
     langversion = "12.0",
+    nullable="enable"
     resources = [
         "//javascript/atoms/fragments:find-elements.js",
         "//javascript/atoms/fragments:is-displayed.js",
@@ -103,6 +105,7 @@ csharp_library(
     out = "WebDriver.StrongNamed",
     keyfile = "//dotnet:WebDriver.snk",
     langversion = "12.0",
+    nullable="annotations"
     resources = [
         "//javascript/atoms/fragments:find-elements.js",
         "//javascript/atoms/fragments:is-displayed.js",
@@ -140,6 +143,7 @@ csharp_library(
     ],
     keyfile = "//dotnet:WebDriver.snk",
     langversion = "12.0",
+    nullable="enable"
     resources = [
         "//javascript/atoms/fragments:find-elements.js",
         "//javascript/atoms/fragments:is-displayed.js",

dotnet/src/webdriver/WebDriver.csproj

@@ -42,10 +42,16 @@
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
   </PropertyGroup>
 
-  <!--TODO when AOT is ready https://github.com/SeleniumHQ/selenium/issues/14480-->
-  <!--<PropertyGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
-    <IsAotCompatible>true</IsAotCompatible>
-  </PropertyGroup>-->
+  <PropertyGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
+    <Nullable>enable</Nullable>
+    
+    <!--TODO when AOT is ready https://github.com/SeleniumHQ/selenium/issues/14480-->
+    <!--<IsAotCompatible>true</IsAotCompatible>-->
+  </PropertyGroup>
+
+  <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
+    <Nullable>annotations</Nullable>
+  </PropertyGroup>
 
   <ItemGroup>
     <InternalsVisibleTo Include="WebDriver.Common.Tests" />