custom required property selector for #567 and #563

Author: dadhi

samples/BlazorServerSide/BlazorServerSide.csproj

@@ -4,6 +4,7 @@
     <TargetFramework>net7.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
+    <LangVersion>11</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>  

samples/BlazorServerSide/Data/WeatherForecastService.cs

@@ -7,13 +7,17 @@ public class WeatherForecastService
         "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
     };
 
+    public required Func<WeatherForecast> WeatherForecastFactory { protected get; init; }
+
     public Task<WeatherForecast[]> GetForecastAsync(DateOnly startDate)
     {
-        return Task.FromResult(Enumerable.Range(1, 5).Select(index => new WeatherForecast
+        return Task.FromResult(Enumerable.Range(1, 5).Select(index =>
         {
-            Date = startDate.AddDays(index),
-            TemperatureC = Random.Shared.Next(-20, 55),
-            Summary = Summaries[Random.Shared.Next(Summaries.Length)]
+            var f = WeatherForecastFactory();
+            f.Date = startDate.AddDays(index);
+            f.TemperatureC = Random.Shared.Next(-20, 55);
+            f.Summary = Summaries[Random.Shared.Next(Summaries.Length)];
+            return f;
         }).ToArray());
     }
 }

samples/BlazorServerSide/Program.cs

@@ -1,16 +1,23 @@
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.Web;
 using BlazorServerSide.Data;
+
+// to get the required properties
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
 using Serilog;
 using DryIoc;
 using DryIoc.Microsoft.DependencyInjection;
 
 var builder = WebApplication.CreateBuilder(args);
 
-var container = new Container(
-    // this is causing the #567 error
-    // Rules.MicrosoftDependencyInjectionRules.With(propertiesAndFields: PropertiesAndFields.Auto)
-);
+// todo: @wip take into account constructor with SetsRequiredMembers attribute
+var requiredProperties = PropertiesAndFields.All(withFields: false, 
+    serviceInfo: (p, _) => p.GetCustomAttribute<RequiredMemberAttribute>() != null ? PropertyOrFieldServiceInfo.Of(p) : null);
+
+var container = new Container(Rules.MicrosoftDependencyInjectionRules.With(propertiesAndFields: requiredProperties));
+
 
 // Here it goes the integration with the existing DryIoc container
 var diFactory = new DryIocServiceProviderFactory(container, RegistrySharing.Share);
@@ -33,6 +40,8 @@
     .CreateLogger();
 builder.Host.UseSerilog(logger);
 
+
+builder.Services.AddSingleton<WeatherForecast>(); // will be injected as required property
 builder.Services.AddSingleton<WeatherForecastService>();
 
 var app = builder.Build();