C#•2y ago

❔ Get property from type

Through reflection I get all the types matching the interface.

 public void GetRegularTypes()
        {
            var interfaceType = typeof(IRegularPuzzle);
            var implementingTypes = AppDomain.CurrentDomain
                                    .GetAssemblies()
                                    .SelectMany(a => a.GetTypes())
                                    .Where(type => interfaceType.IsAssignableFrom(type)
                                            && !type.IsAbstract
                                            && !type.IsInterface);

            foreach (var type in implementingTypes)
            {
                PropertyInfo nameProperty = type.GetProperty("Name");
                string name = (string)nameProperty.GetValue(null);
                _regularTypes[name.ToLower()] = type;      
            }
        }

 public void GetRegularTypes()
        {
            var interfaceType = typeof(IRegularPuzzle);
            var implementingTypes = AppDomain.CurrentDomain
                                    .GetAssemblies()
                                    .SelectMany(a => a.GetTypes())
                                    .Where(type => interfaceType.IsAssignableFrom(type)
                                            && !type.IsAbstract
                                            && !type.IsInterface);

            foreach (var type in implementingTypes)
            {
                PropertyInfo nameProperty = type.GetProperty("Name");
                string name = (string)nameProperty.GetValue(null);
                _regularTypes[name.ToLower()] = type;      
            }
        }

However, a class has for example:

    public class NineByNineRegularPuzzle : IRegularPuzzle
    {
        public string Name => "9x9";

        public int Size => 9;
    }

    public class NineByNineRegularPuzzle : IRegularPuzzle
    {
        public string Name => "9x9";

        public int Size => 9;
    }

Is there a way I can get the Name property in the foreach? What i tried didnt work.

10 Replies

electronic heartbreak.OP•2y ago

Or is it OK to rename the file to 6x6RegularPuzzle?

ero•2y ago

why are you using reflection?

electronic heartbreak.OP•2y ago

Since i dynamically need the puzzles. I first had a list with the extensions but that was not good. This works:

public void GetRegularTypes()
        {
            var interfaceType = typeof(IRegularPuzzle);
            var implementingTypes = AppDomain.CurrentDomain
                                    .GetAssemblies()
                                    .SelectMany(a => a.GetTypes())
                                    .Where(type => interfaceType.IsAssignableFrom(type)
                                            && !type.IsAbstract
                                            && !type.IsInterface);

            foreach (var type in implementingTypes)
            {
                 IRegularPuzzle puzzle = (IRegularPuzzle)Activator.CreateInstance(type);
                _regularTypes[puzzle.Name] = puzzle;
            }
        }

public void GetRegularTypes()
        {
            var interfaceType = typeof(IRegularPuzzle);
            var implementingTypes = AppDomain.CurrentDomain
                                    .GetAssemblies()
                                    .SelectMany(a => a.GetTypes())
                                    .Where(type => interfaceType.IsAssignableFrom(type)
                                            && !type.IsAbstract
                                            && !type.IsInterface);

            foreach (var type in implementingTypes)
            {
                 IRegularPuzzle puzzle = (IRegularPuzzle)Activator.CreateInstance(type);
                _regularTypes[puzzle.Name] = puzzle;
            }
        }

but i activate all the instances pain

DarkVader•2y ago

Try this var nameProperty = type .GetProperties() .First(x => x.Name == "Name"); You can get the value from that easily Sorry for the formatting I'm on my phone

Pascal•2y ago

Type names can not begin with numbers

electronic heartbreak.OP•2y ago

I got static issues when doing that

DarkVader•2y ago

Why can't you make the method static?

electronic heartbreak.OP•2y ago

The method? Sorry it's 8 am and I just woke up

DarkVader•2y ago

GetRegularTypes function or method, whatever you like to call it. Good morning then

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Get property from type