Autofac - get all instances of classes whose interface implements specific interface [duplicate] - c#

Consider the following
builder.Register(c => new A());
builder.Register(c => new B());
builder.Register(c => new C());
B and C are both ISomeInterface.
I would now like to get an IEnumerable of all registered objects that implement ISomeInterface.
How can I accomplish this in Autofac?


Just tried this, works and does not depend on lifetime context:
Enumerate types using Activator instead
var types = con.ComponentRegistry.Registrations
.Where(r => typeof(ISomeInterface).IsAssignableFrom(r.Activator.LimitType))
.Select(r => r.Activator.LimitType);
Then to resolve:
IEnumerable<ISomeInterface> lst = types.Select(t => con.Resolve(t) as ISomeInterface);


If you have
container.Register(c => new A()).As<ISomeInterface>();
container.Register(c => new B()).As<ISomeInterface>();
Then when you do
var classes = container.Resolve<IEnumerable<ISomeInterface>>();
You will get a variable that is a list of ISomeInterface, containing A and B


Here is how I did it.
var l = Container.ComponentRegistry.Registrations
.SelectMany(x => x.Services)
.OfType<IServiceWithType>()
.Where(x =>
x.ServiceType.GetInterface(typeof(ISomeInterface).Name) != null)
.Select(c => (ISomeInterface) c.ServiceType);


I was looking for a similar solution for registrations done as follows:
builder.RegisterType<Bamboo>().As<IExoticTree>();
// and/or
builder.RegisterType<SolidOak>().Keyed<IMountainTree>(key);
where IExoticTree and IMountainTree inherit from a common ITree interface.
With those, the service type (e.g. registered interface) is different from the LimitType and hence, the proposed solution is not applicable.
I got inspired by the accepted solution to manage these as well with the following code:
IEnumerable<ITree> instances = scope.ComponentRegistry.Registrations
.Where(r => typeof(ITree).IsAssignableFrom(r.Activator.LimitType))
.Select(r => r.Services.First())
.Select(s => scope.ResolveService(s) as ITree)
.Distinct();
Hope it helps someone ^^


I needed to resolve based on some context. So slight variation...
builder.RegisterAssemblyTypes(Assembly.GetAssembly(typeof(ISomeStrategy)))
.Where(t => typeof(ISomeStrategy).IsAssignableFrom(t))
.AsSelf();
builder.Register<Func<SomeEnum, ISomeStrategy>>(c =>
{
var types = c.ComponentRegistry.Registrations
.Where(r => typeof(ISomeStrategy).IsAssignableFrom(r.Activator.LimitType))
.Select(r => r.Activator.LimitType);
ISomeStrategy[] lst = types.Select(t => c.Resolve(t) as ISomeStrategy).ToArray();
return (someEnum) =>
{
return lst.FirstOrDefault(x => x.CanProcess(someEnum));
};
});
Then for your class using the strategy
public SomeProvider(Func<SomeType, ISomeStrategy> someFactory)
{
_someFactory = someFactory;
}
public void DoSomething(SomeType someType)
{
var strategy = _someFactory(someType);
strategy.DoIt();
}


Clarification for any one searching this with regards to Inherited Class
Ex :
public static IEnumerable<Type> GetTypesInherit<T>(this Assembly assembly)
{
var types = assembly.GetTypes()
.Where(myType => myType.IsClass && !myType.IsAbstract && myType.IsSubclassOf(typeof(T)))
.ToList();
return types;
}
Installer :
public static IContainer Install()
{
var builder = new ContainerBuilder();
var executingAssembly = Assembly.GetExecutingAssembly();
var testScreens = executingAssembly.GetTypesInherit<TestScreen>();
foreach (var testScreen in testScreens)
{
builder.RegisterType(testScreen).As<TestScreen>();
}
var container = builder.Build();
return container;
}
Usage (Implicit) :
public class MainViewModel(IEnumerable<TestScreen> testScreens)
{}

Related

Query for static type in Linq

When I query for abstract types using Linq, it also grabs static classes.
IEnumerable<Type> FilterInheritable()
{
var q = Assembly.Load("Assembly-CSharp").GetTypes()
.Where(x => x.IsAbstract == true);
return q;
}
Is it possible to filter out the static types? Something like this?
IEnumerable<Type> FilterInheritable()
{
var q = Assembly.Load("Assembly-CSharp").GetTypes()
.Where(x => x.IsAbstract == true)
.Where(x => x.IsStatic != true);
return q;
}

Since static classes are also sealed by definition, but abstract classes cannot be sealed, you can do this:
var q = Assembly.Load("Assembly-CSharp").GetTypes()
.Where(x => x.IsAbstract && x.IsClass && !x.IsSealed);
I added IsClass to exclude interfaces as well.

Mapping with a condition

I want to map 2 objects based on a condition, if true mapp else ignore, the condition is not a part of source neither destination
var mapperconfig = new MapperConfiguration(cfg =>
{
cfg.CreateMap<Source, Destination>()
.ForMember(source => source.Titulaires,
opt => opt.Condition(titulaires.HasValue && titulaires == true));
....
});
the extension method Condition() accepts just a type related to source or destination.

AutoMapper allows you to add conditions to properties that must be met before that property will be mapped.
Eg.
public class Foo
{
public int baz;
}
public class Bar
{
public uint baz;
}
public class Program
{
public static void Main()
{
Mapper.CreateMap<Foo,Bar>().ForMember(dest => dest.baz, opt => opt.Condition(src => (src.baz >= 0)));
var foo1 = new Foo { baz=-1 };
var bar1 = Mapper.Map<Bar>(foo1);
Console.WriteLine("bar1.baz={0}", bar1.baz);
var foo2 = new Foo{ baz=100 };
var bar2 = Mapper.Map<Bar>(foo2);
Console.WriteLine("bar2.baz={0}", bar2.baz);
}
}
Also, they give Preconditions functionality
See this link Conditional Mapping

thank you all for your help, I find a way to test my conditions into my automapper configuration : MapperConfiguration mappConf = new MapperConfiguration(config => {
config.CreateMap()
.ForMember(destination => destination.member, option => option.Condition(item => _condition == true))........});

LINQ to dictionary with multiple keys for a single value

Consider the following code:
public KeyAttribute : Attribute{
public string Value;
public KeyAttribute(string value){
Value = value;
}
}
[Key("A")]
[Key("AB")]
public class A : IClass
{
public string FieldA {get;set;}
}
[Key("B")]
public class B : IClass
{
public string FieldB {get;set;}
}
So I have to through all the implementations of IClass interface, and I've got to construct a dictionary Dictionary<string, ConstructorInfo> where the keys are the Value properties of KeyAttribute, and the values are the corresponding ConstructorInfo.
Notice that there might be several KeyAttribute on a single class, so for that case, there should be the corresponding amount of entries in the dictionary.
For the current example, the desired outcome is:
key | value
--------+-------------------
"A" | ConstructorInfo A
"AB" | ConstructorInfo A
"B" | ConstructorInfo B
At first I wrote this:
return AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(s => s.GetTypes())
.Where(t => typeof(IClass).IsAssignableFrom(t))
.ToDictionary(t =>
{
var key = (KeyAttribute) t.GetCustomAttributes(typeof(KeyAttribute), true).First();
return key.Value;
}, t => t.GetConstructors(BindingFlags.Public).First());
But as you can see, the code above does not handle the situation with several attributes.
So I did the following, but it's obviously wrong and I'm not sure how to correct it.
return AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(s => s.GetTypes())
.Where(t => typeof(IClass).IsAssignableFrom(t))
.ToDictionary(t =>
{
return t.GetCustomAttributes(typeof(KeyAttribute), true).Select(a => ((KeyAttribute)a).Value);
}, t => t.GetConstructors(BindingFlags.Public).First());
I know I can do that without LINQ like that:
var types = AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(s => s.GetTypes())
.Where(t => typeof(IClass).IsAssignableFrom(t));
var dict = new Dictionary<string, ConstructorInfo>();
foreach (var type in types)
{
var keys = type.GetCustomAttributes(typeof(KeyAttribute), true).Cast<KeyAttribute>().Select(a => a.Value);
var ctorInfo = type.GetConstructors(BindingFlags.Public).First();
foreach (var key in keys)
{
dict.Add(key, ctorInfo);
}
}
return dict;
But I'd rather stick to LINQ, if it is possible.
Sorry about all these somewhat misleading details about attributes and all that, while it is a question about LINQ, but I couldn't think of any other vivid example.

This should work:
return AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(s => s.GetTypes())
.Where(t => typeof(IClass).IsAssignableFrom(t))
.SelectMany(t => t.GetCustomAttributes(typeof(KeyAttribute), true)
.Select(a => new
{
constInfo = t.GetConstructors(BindingFlags.Public).First(),
attrVal = ((KeyAttribute)a).Value
}))
.ToDictionary(entry => entry.attrVal, entry => entry.constInfo);

Use SelectMany for key attributes
return AppDomain.CurrentDomain.GetAssemblies()
.SelectMany(s => s.GetTypes())
.Where(t => typeof(IClass).IsAssignableFrom(t))
.SelectMany(t =>
{
return t.GetCustomAttributes<KeyAttribute>()
.Select(ka => new
{
Key = ka,
Ctor = t.GetConstructors(BindingFlags.Public).First()
});
})
.ToDictionary(t => t.Key, t.Ctor);

TinyIoC Resolve Plugin Contract

How would one go about resolving Plugin contacts using TinyIoC?
Host.exe /w reference to Core.Contract.dll
var container = new TinyIoCContainer();
container.AutoRegister(new[] { Assembly.LoadFrom("Core.Contracts.dll") },
DuplicateImplementationActions.RegisterMultiple);
container.AutoRegister(new[] { Assembly.LoadFrom("EchoCodeAnalysis.dll") },
DuplicateImplementationActions.RegisterMultiple);
var mi = container.Resolve<IService>();
the contract IService in in Core.Contracts.dll and is reference in the host assembly, this is to give the drag and drop plugin a chance to work without recompilation.
In EchoCodeAnalysis.dll we have the actual plugin implementation which is not referenced in the host assembly but share the host of Core.Contracts.dll using the IService.
Core.Contract.dll:
public interface IService
{
string ID { get; set; }
}
EchoCodeAnalysis.dll:
public class Service : IService
{
string IService.ID
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
}
EDIT:
I managed to resolve the first part of my issue.
var type = typeof(IService);
var types = (new[] { Assembly.LoadFrom("EchoCodeAnalysis.dll") }).ToList()
.SelectMany(s => s.GetTypes())
.Where(x => type.IsAssignableFrom(x) && x.IsClass).ToList();
container.RegisterMultiple<IService>(types.ToArray());
var mi = container.ResolveAll<Core.Contracts.IService>();
Will fetch and resolve all IService interfaces, that limits the plugin to that interface and not any high up implementations. Say, IMenuItem impltemented as IService, the code above could find any class that is traced back to the origin of IService, but those that explicitly implement IMenuItem which has lets say name, when resolved as IService it will only fetch the IService properties and not include IMenuItem properties.
That is where. container.Register(types.ToArray()).AsRespectiveImplementations() would come in handy.
But is there anywhere around this issue? or is this a utility that has to be written up to extend TinyIOC?
Edit 2:
We have then moved to a extension but we are still not getting anything resolved.
public static IEnumerable<T> GetPluginsForModule<T>()
{
var type = typeof(T);
var types = Plugins.SelectMany(s => s.GetTypes())
.Where(x => type.IsAssignableFrom(x) && x.IsClass).ToList();
foreach (var t in types)
{
if (t.CustomAttributes.Where(x => x.AttributeType == typeof(CluraPlugin)).Any())
{
CustomAttributeData attr = t.CustomAttributes.Where(x => x.AttributeType == typeof(CluraPlugin)).FirstOrDefault();
if (attr == null)
break;
string Name = attr.ConstructorArguments.Where(x => x.ArgumentType == typeof(string)).FirstOrDefault().Value as string;
Type InterfaceTypeArgument = attr.ConstructorArguments.Where(x => x.ArgumentType == typeof(Type)).FirstOrDefault().Value as Type;
Container.Register(InterfaceTypeArgument, t, Name).AsMultiInstance();
}
}
return Container.ResolveAll(type) as IEnumerable<T>;
}
I'm passing the correct values, in the Container.Register above we have
InterfaceTypeArgument = IMenuItem, t = EchoMenu : IMenuItem, Name = "EchoMenu"
but when we ask the container to resolve IMenuItem after registering EchoMenu as its implementation we get null back from resolve all.
Any thoughts?

I found a way, not sure about best practice or potential memory issues down the road, with benchmark testing.
Using:
string PluginDirectory = Directory.GetCurrentDirectory() +"\\Plugins\\";
PluginManager.LoadDirectory(PluginDirectory);
var mi = PluginManager.GetPluginsForModule<IService>();
Which resolves things like this:
public static IEnumerable<object> GetPluginsForModule<T>()
{
var type = typeof(T);
var types = Plugins.SelectMany(s => s.GetTypes())
.Where(x => type.IsAssignableFrom(x) && x.IsClass).ToList();
foreach (var t in types)
{
if (t.CustomAttributes.Where(x => x.AttributeType == typeof(CluraPlugin)).Any())
{
CustomAttributeData attr = t.CustomAttributes.Where(x => x.AttributeType == typeof(CluraPlugin)).FirstOrDefault();
if (attr == null)
break;
string Name = attr.ConstructorArguments.Where(x => x.ArgumentType == typeof(string)).FirstOrDefault().Value as string;
Type InterfaceTypeArgument = attr.ConstructorArguments.Where(x => x.ArgumentType == typeof(Type)).FirstOrDefault().Value as Type;
Container.Register(InterfaceTypeArgument, t, Name).AsMultiInstance();
}
}
return Container.ResolveAll(type);
}
It might not be optimal when doing things on the fly, so there might need to be a need for a plugin manager to hold implementations as instances once you start the application and use them from list of plugin types.

Getting All Controllers and Actions names in C#

Is it possible to list the names of all controllers and their actions programmatically?
I want to implement database driven security for each controller and action. As a developer, I know all controllers and actions and can add them to a database table, but is there any way to add them automatically?

The following will extract controllers, actions, attributes and return types:
Assembly asm = Assembly.GetAssembly(typeof(MyWebDll.MvcApplication));
var controlleractionlist = asm.GetTypes()
.Where(type=> typeof(System.Web.Mvc.Controller).IsAssignableFrom(type))
.SelectMany(type => type.GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public))
.Where(m => !m.GetCustomAttributes(typeof( System.Runtime.CompilerServices.CompilerGeneratedAttribute), true).Any())
.Select(x => new {Controller = x.DeclaringType.Name, Action = x.Name, ReturnType = x.ReturnType.Name, Attributes = String.Join(",", x.GetCustomAttributes().Select(a => a.GetType().Name.Replace("Attribute",""))) })
.OrderBy(x=>x.Controller).ThenBy(x => x.Action).ToList();
If you run this code in linqpad for instance and call
controlleractionlist.Dump();
you get the following output:

You can use reflection to find all Controllers in the current assembly, and then find their public methods that are not decorated with the NonAction attribute.
Assembly asm = Assembly.GetExecutingAssembly();
asm.GetTypes()
.Where(type=> typeof(Controller).IsAssignableFrom(type)) //filter controllers
.SelectMany(type => type.GetMethods())
.Where(method => method.IsPublic && ! method.IsDefined(typeof(NonActionAttribute)));

I was looking for a way to get Area, Controller and Action and for this I manage to change a little the methods you post here, so if anyone is looking for a way to get the AREA here is my ugly method (which I save to an xml):
public static void GetMenuXml()
{
var projectName = Assembly.GetExecutingAssembly().FullName.Split(',')[0];
Assembly asm = Assembly.GetAssembly(typeof(MvcApplication));
var model = asm.GetTypes().
SelectMany(t => t.GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public))
.Where(d => d.ReturnType.Name == "ActionResult").Select(n => new MyMenuModel()
{
Controller = n.DeclaringType?.Name.Replace("Controller", ""),
Action = n.Name,
ReturnType = n.ReturnType.Name,
Attributes = string.Join(",", n.GetCustomAttributes().Select(a => a.GetType().Name.Replace("Attribute", ""))),
Area = n.DeclaringType.Namespace.ToString().Replace(projectName + ".", "").Replace("Areas.", "").Replace(".Controllers", "").Replace("Controllers", "")
});
SaveData(model.ToList());
}
Edit:
//assuming that the namespace is ProjectName.Areas.Admin.Controllers
Area=n.DeclaringType.Namespace.Split('.').Reverse().Skip(1).First()

All these answers rely upon reflection, and although they work, they try to mimic what the middleware does.
Additionally, you may add controllers in different ways, and it is not rare to have the controllers shipped in multiple assemblies. In such cases, relying on reflection requires too much knowledge: for example, you have to know which assemblies are to be included, and when controllers are registered manually, you might choose a specific controller implementation, thus leaving out some legit controllers that would be picked up via reflection.
The proper way in ASP.NET Core to get the registered controllers (wherever they are) is to require this service IActionDescriptorCollectionProvider.
The ActionDescriptors property contains the list of all the actions available. Each ControllerActionDescriptor provides details
including names, types, routes, arguments and so on.
var adcp = app.Services.GetRequiredService<IActionDescriptorCollectionProvider>();
var descriptors = adcp.ActionDescriptors
.Items
.OfType<ControllerActionDescriptor>();
For further information, please see the MSDN documentation.
Edited You may find more information on this SO question.

var result = Assembly.GetExecutingAssembly()
.GetTypes()
.Where(type => typeof(ApiController).IsAssignableFrom(type))
.SelectMany(type => type.GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public))
.Where(m => !m.GetCustomAttributes(typeof(System.Runtime.CompilerServices.CompilerGeneratedAttribute), true).Any())
.GroupBy(x => x.DeclaringType.Name)
.Select(x => new { Controller = x.Key, Actions = x.Select(s => s.Name).ToList() })
.ToList();

Assembly assembly = Assembly.LoadFrom(sAssemblyFileName)
IEnumerable<Type> types = assembly.GetTypes().Where(type => typeof(Controller).IsAssignableFrom(type)).OrderBy(x => x.Name);
foreach (Type cls in types)
{
list.Add(cls.Name.Replace("Controller", ""));
IEnumerable<MemberInfo> memberInfo = cls.GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public).Where(m => !m.GetCustomAttributes(typeof(System.Runtime.CompilerServices.CompilerGeneratedAttribute), true).Any()).OrderBy(x => x.Name);
foreach (MemberInfo method in memberInfo)
{
if (method.ReflectedType.IsPublic && !method.IsDefined(typeof(NonActionAttribute)))
{
list.Add("\t" + method.Name.ToString());
}
}
}

If it may helps anyone, I improved #AVH's answer to get more informations using recursivity.
My goal was to create an autogenerated API help page :
Assembly.GetAssembly(typeof(MyBaseApiController)).GetTypes()
.Where(type => type.IsSubclassOf(typeof(MyBaseApiController)))
.SelectMany(type => type.GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public))
.Where(m => !m.GetCustomAttributes(typeof(System.Runtime.CompilerServices.CompilerGeneratedAttribute), true).Any())
.Select(x => new ApiHelpEndpointViewModel
{
Endpoint = x.DeclaringType.Name.Replace("Controller", String.Empty),
Controller = x.DeclaringType.Name,
Action = x.Name,
DisplayableName = x.GetCustomAttributes<DisplayAttribute>().FirstOrDefault()?.Name ?? x.Name,
Description = x.GetCustomAttributes<DescriptionAttribute>().FirstOrDefault()?.Description ?? String.Empty,
Properties = x.ReturnType.GenericTypeArguments.FirstOrDefault()?.GetProperties(),
PropertyDescription = x.ReturnType.GenericTypeArguments.FirstOrDefault()?.GetProperties()
.Select(q => q.CustomAttributes.SingleOrDefault(a => a.AttributeType.Name == "DescriptionAttribute")?.ConstructorArguments ?? new List<CustomAttributeTypedArgument>() )
.ToList()
})
.OrderBy(x => x.Controller)
.ThenBy(x => x.Action)
.ToList()
.ForEach(x => apiHelpViewModel.Endpoints.Add(x)); //See comment below
(Just change the last ForEach() clause as my model was encapsulated inside another model).
The corresponding ApiHelpViewModel is :
public class ApiHelpEndpointViewModel
{
public string Endpoint { get; set; }
public string Controller { get; set; }
public string Action { get; set; }
public string DisplayableName { get; set; }
public string Description { get; set; }
public string EndpointRoute => $"/api/{Endpoint}";
public PropertyInfo[] Properties { get; set; }
public List<IList<CustomAttributeTypedArgument>> PropertyDescription { get; set; }
}
As my endpoints return IQueryable<CustomType>, the last property (PropertyDescription) contains a lot of metadatas related to CustomType's properties. So you can get the name, type, description (added with a [Description] annotation) etc... of every CustomType's properties.
It goes further that the original question, but if it can help someone...
UPDATE
To go even further, if you want to add some [DataAnnotation] on fields you can't modify (because they've been generated by a Template for example), you can create a MetadataAttributes class :
[MetadataType(typeof(MetadataAttributesMyClass))]
public partial class MyClass
{
}
public class MetadataAttributesMyClass
{
[Description("My custom description")]
public int Id {get; set;}
//all your generated fields with [Description] or other data annotation
}
BE CAREFUL : MyClass MUST be :
A partial class,
In the same namespace as the generated MyClass
Then, update the code which retrieves the metadatas :
Assembly.GetAssembly(typeof(MyBaseController)).GetTypes()
.Where(type => type.IsSubclassOf(typeof(MyBaseController)))
.SelectMany(type => type.GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public))
.Where(m => !m.GetCustomAttributes(typeof(System.Runtime.CompilerServices.CompilerGeneratedAttribute), true).Any())
.Select(x =>
{
var type = x.ReturnType.GenericTypeArguments.FirstOrDefault();
var metadataType = type.GetCustomAttributes(typeof(MetadataTypeAttribute), true)
.OfType<MetadataTypeAttribute>().FirstOrDefault();
var metaData = (metadataType != null)
? ModelMetadataProviders.Current.GetMetadataForType(null, metadataType.MetadataClassType)
: ModelMetadataProviders.Current.GetMetadataForType(null, type);
return new ApiHelpEndpoint
{
Endpoint = x.DeclaringType.Name.Replace("Controller", String.Empty),
Controller = x.DeclaringType.Name,
Action = x.Name,
DisplayableName = x.GetCustomAttributes<DisplayAttribute>().FirstOrDefault()?.Name ?? x.Name,
Description = x.GetCustomAttributes<DescriptionAttribute>().FirstOrDefault()?.Description ?? String.Empty,
Properties = x.ReturnType.GenericTypeArguments.FirstOrDefault()?.GetProperties(),
PropertyDescription = metaData.Properties.Select(e =>
{
var m = metaData.ModelType.GetProperty(e.PropertyName)
.GetCustomAttributes(typeof(DescriptionAttribute), true)
.FirstOrDefault();
return m != null ? ((DescriptionAttribute)m).Description : string.Empty;
}).ToList()
};
})
.OrderBy(x => x.Controller)
.ThenBy(x => x.Action)
.ToList()
.ForEach(x => api2HelpViewModel.Endpoints.Add(x));
(Credit to this answer)
and update PropertyDescription as public List<string> PropertyDescription { get; set; }

Use Reflection, enumerate all types inside the assembly and filter classes inherited from System.Web.MVC.Controller, than list public methods of this types as actions

Or, to whittle away at #dcastro 's idea and just get the controllers:
Assembly.GetExecutingAssembly()
.GetTypes()
.Where(type => typeof(Controller).IsAssignableFrom(type))

#decastro answer is good. I add this filter to return only public actions those have been declared by the developer.
var asm = Assembly.GetExecutingAssembly();
var methods = asm.GetTypes()
.Where(type => typeof(Controller)
.IsAssignableFrom(type))
.SelectMany(type => type.GetMethods())
.Where(method => method.IsPublic
&& !method.IsDefined(typeof(NonActionAttribute))
&& (
method.ReturnType==typeof(ActionResult) ||
method.ReturnType == typeof(Task<ActionResult>) ||
method.ReturnType == typeof(String) ||
//method.ReturnType == typeof(IHttpResult) ||
)
)
.Select(m=>m.Name);

Update:
For .NET 6 minimal hosting model see this answer on how to replace Startup in the code below
https://stackoverflow.com/a/71026903/3850405
Original:
In .NET Core 3 and .NET 5 you can do it like this:
Example:
public class Example
{
public void ApiAndMVCControllers()
{
var controllers = GetChildTypes<ControllerBase>();
foreach (var controller in controllers)
{
var actions = controller.GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public);
}
}
private static IEnumerable<Type> GetChildTypes<T>()
{
var types = typeof(Startup).Assembly.GetTypes();
return types.Where(t => t.IsSubclassOf(typeof(T)) && !t.IsAbstract);
}
}

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