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Call generic implementation of method using Reflection

View gist:4379572
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void Main()
{
GetPersisterFor(new Foo());
}
 
public interface IPersister { }
public interface IEntity { }
public class Foo : IEntity { }
public class Bar : IEntity { }
 
public IPersister GetPersisterFor(IEntity entity)
{
Console.WriteLine("Call GetPersisterFor(IEntity entity)");
MethodInfo getPersisterForGenericMethod =
GetType().GetMethods()
// iterate over all methods to find proper generic implementation
.Single(methodInfo => methodInfo.Name == "GetPersisterFor" && methodInfo.IsGenericMethod)
// supply it with generic type parameter
.MakeGenericMethod(entity.GetType());
 
// invoke it
return getPersisterForGenericMethod.Invoke(this, null) as IPersister;
}
 
public IPersister GetPersisterFor<TEntity>() where TEntity : IEntity
{
Console.WriteLine("Call GetPersisterFor<TEntity>");
return null;
}
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