D.Mentia
Repository Pattern and Clean Architecture
You don't abstract the data you're getting, another reason to skip repository pattern. Each endpoint needs something unique and specific from the DB, trying to share a query between them will usually result in one of the two getting more data than it needs. Even if both Blazor and Api currently get the same data, there's no guarantee they always will be in sync as each one's needs evolve in the future, and sharing any part of their queries (or even using the same DTO for both) is usually a bad idea
If there is some guarantee and it's just identical code across them, then I'd focus on figuring out how to share that duplicated code as a whole, not just the query
46 replies
AutoMapper example projects with mapping profiles
But notably, one thing I've found automapper useful for, is it has a ProjectTo thing that works with EF, which can be neat for performing an efficient query that selects exactly what you need from the database. Though that skirts close to a repository pattern, but it can be very nice to have all your DB queries updated by just updating the profile, or sometimes even just adding a new property to the DTO, and it ensures that it gets selected out of the DB once added
I don't think it's generally worth the tradeoff, but that should be enough for you to do your weird complex mappings from the database if you want to. Though when they get weird and complex, automapper should almost certainly not be used
64 replies
AutoMapper example projects with mapping profiles
writing all the mappings manually just has to happen once and is safe and maintainable forever after that. I'd be most interested in a 'source generator' mapper that just generates them once, on some command, and then they're real code that you just have around like anything else and maintain as needed
If you're set on automapper, the way I've always used them is just one Profile for the app or project or service or etc. It gets especially rough when you start needing different services to map things in different ways, of course, or if you start designing your logic around automapper so then you have to start coding complex conversion logic into the maps
64 replies
AutoMapper example projects with mapping profiles
yeah I'd recommend Mapperly if I had used it before, in theory it seems much safer and better than automapper, I'm just not sure if it might have other problems in practice.
Turning compile time errors into runtime errors is ... hard to overstate how big of a problem that is, it enables errors that would be nearly impossible to produce without it. And even worse that it sometimes doesn't even cause errors, just bad data, that you never know about until one of your clients tells you about it
Turning compile time errors into runtime errors is ... hard to overstate how big of a problem that is, it enables errors that would be nearly impossible to produce without it. And even worse that it sometimes doesn't even cause errors, just bad data, that you never know about until one of your clients tells you about it
64 replies
AutoMapper example projects with mapping profiles
Nah automapper is pretty terrible, might as well just use a dynamic instead of DTOs, it amounts to about the same thing
I've only used it when forced, and then we just explicitly map every property to avoid the worst of the issues, which of course makes it completely pointless
64 replies
✅ Can you make labels scroll alongside input?
I agree that smaller font would be best, and/or a scroll bar for it.
Otherwise, if you don't like those ideas, you mention it's a label, so it might help if the text goes into a text box component instead of a label, then right align might do it automatically. Users could also type in the numbers directly, but be careful they don't type in random C# code that you execute If it is a label, autosize, text align right, and anchor right, should let it extend to the left as it gets longer, and then it would end up under the gray area if z-ordered correctly and 'cut off' the left side
Otherwise, if you don't like those ideas, you mention it's a label, so it might help if the text goes into a text box component instead of a label, then right align might do it automatically. Users could also type in the numbers directly, but be careful they don't type in random C# code that you execute If it is a label, autosize, text align right, and anchor right, should let it extend to the left as it gets longer, and then it would end up under the gray area if z-ordered correctly and 'cut off' the left side
54 replies
Converting a string to a list of objects using only LINQ.
If you can control the input format, probably just make it json, it's much simpler. Otherwise something like
but you may have problems with line endings sometimes being
\r\n or \r or \n
... also notably, it doesn't make sense for one entry on a shopping list to be a ShoppingList24 replies
✅ Delegates. What are they and what are they used for?
I explained them above if you need it worded a different way https://discordapp.com/channels/143867839282020352/1292841177971953674/1292859785363853395
375 replies
✅ Delegates. What are they and what are they used for?
often when we say things like "you don't know X", what we mean is that you should pretend you don't know X because X is handled somewhere else, it's not your job right now, and in theory someone else might be the one writing X, not you
375 replies
✅ Delegates. What are they and what are they used for?
when your programs get big and complicated, the 'you' that writes one method might be you from a month ago and not the same you that's writing the second method 😛 and so that second you doesn't know what the first one does anymore
375 replies
✅ Delegates. What are they and what are they used for?
timers are still probably a good example of when they are quite useful, if you wanted it to add those numbers 10s later, and you subtract them now, that timer has to be given a delegate so it knows what to do in 10s
375 replies
✅ Delegates. What are they and what are they used for?
But imagine or maybe write it the other way around, where you first ask if they want to add or subtract. Then you call HandleInput(calc.Add) or (calc.Sub), and HandleInput is a method that asks for those numbers and just calls whatever method was passed to it
375 replies