Updated to aspnetcore preview9 and fixed any changes in the API. (#2160)

src/ReactiveUI.Blazor/ReactiveComponentBase.cs

@@ -93,10 +93,10 @@ namespace ReactiveUI.Blazor
         }
 
         /// <inheritdoc />
-        protected override void OnInit()
+        protected override void OnInitialized()
         {
             _initSubject.OnNext(Unit.Default);
-            base.OnInit();
+            base.OnInitialized();
         }
 
         /// <summary>

src/ReactiveUI.Blazor/ReactiveLayoutComponentBase.cs

@@ -11,7 +11,7 @@ using System.Reactive;
 using System.Reactive.Linq;
 using System.Reactive.Subjects;
 using System.Runtime.CompilerServices;
-using Microsoft.AspNetCore.Components.Layouts;
+using Microsoft.AspNetCore.Components;
 
 namespace ReactiveUI.Blazor
 {
@@ -89,10 +89,10 @@ namespace ReactiveUI.Blazor
         }
 
         /// <inheritdoc />
-        protected override void OnInit()
+        protected override void OnInitialized()
         {
             _initSubject.OnNext(Unit.Default);
-            base.OnInit();
+            base.OnInitialized();
         }
 
         /// <summary>

src/ReactiveUI.Blazor/ReactiveUI.Blazor.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Reactive.Wasm" Version="1.0.1-preview.8" />
-    <PackageReference Include="Microsoft.AspNetCore.Components" Version="3.0.0-preview6.19307.2"  />
+    <PackageReference Include="Microsoft.AspNetCore.Components" Version="3.0.0-preview9.19424.4" />
   </ItemGroup>
 
   <ItemGroup>