.NET Framework 4.6.1 reached its End of Life on April 26, 2022
public class Program
public class Sample
Do you need to instantiate types with or from external assemblies ? Share public link activators dotnet 4.6.1
public class Factory where T : new() public T Create() return new T(); // Compiled into an efficient IL instruction Use code with caution.
When working with activators in .NET 4.6.1, you should be prepared for several exceptions: : If the type passed is null.
For maximum performance when creating objects from a Type variable, you can compile an expression tree into a reusable delegate. This compiles down to direct IL (Intermediate Language), executing just as fast as standard new operators. For maximum performance when creating objects from a
Modern iterations (such as .NET 8) have drastically optimized Activator.CreateInstance internally using advanced runtime tiering and IL stub caching, rendering some custom expression factories obsolete. However, in the .NET 4.6.1 paradigm, manual optimization remains a critical best practice for high-load systems.
: Thrown if you try to instantiate an internal or private constructor without the necessary Code Access Security (CAS) permissions.
In the .NET 4.6.1 universe, this is the story of the System.Activator class. However, in the
If your class requires parameters during initialization, pass them as an object array.
: This overload allows you to pass arguments to a constructor that matches the provided signature.
Thrown if no matching constructor can be found. This often happens if you forget to pass the required arguments or if a parameterless constructor does not exist.