👀 Views: 55 💬 Answers: 1 📅 Created: 2025-06-06

reflection generics c#-11 C#

This might be a silly question, but I'm working with an scenario with invoking a method dynamically using reflection in C# 11, specifically when the method has multiple overloads and uses generic delegates..... When I try to invoke the method, I'm getting an `ArgumentException` stating that no overload matches the argument types. Here's the setup: I have a generic method defined like this: ```csharp public class MyClass { public void Process<T>(T item) { Console.WriteLine($"Processing: {item}"); } } ``` And I'm trying to invoke this method dynamically using reflection: ```csharp var myClass = new MyClass(); var methodInfo = typeof(MyClass).GetMethod("Process"); var genericMethod = methodInfo.MakeGenericMethod(typeof(string)); genericMethod.Invoke(myClass, new object[] { "Hello World" }); ``` This works perfectly, but I also have another overload: ```csharp public void Process<T>(List<T> items) { foreach (var item in items) { Console.WriteLine($"Processing: {item}"); } } ``` When I try to invoke this overload with the same dynamic method invocation approach: ```csharp var methodInfo = typeof(MyClass).GetMethod("Process"); var genericMethod = methodInfo.MakeGenericMethod(typeof(string)); var list = new List<string> { "Item1", "Item2" }; genericMethod.Invoke(myClass, new object[] { list }); ``` I get the following exception: ``` System.ArgumentException: No overload for method 'Process' takes 1 arguments. ``` It seems that reflection is not able to determine the correct overload to invoke. I've tried checking the method parameters and ensuring that I’m constructing the `MakeGenericMethod` call appropriately, but I still need to get it to work. Is there a specific way to handle method overloads in C# when using reflection with generic methods? Any insights or workarounds would be greatly appreciated! I'm working on a service that needs to handle this. My team is using C# for this CLI tool.