Feedback (Loading, Validation, Error Messages) - WPF MVVM TUTORIAL #8

[@KingsleyWong-s7z]

Your code is very beautiful and elegant. You are a genius programmer

[@armanddebesse1792]

Thanks a lot ! I'm a French student in IT and those mvvm/wpf videos really help me

[@SingletonSean]

Fantastic! Glad this has been helpful armand.

[@maherworld1]

Great series Sean, Thanks a lot .

[@eltonlame1666]

Great explanation as always.

[@cruxeno]

Very good explanation of the Data validation Sean. I think you could make the AddError() and CleanError() a bit shorter by introducing [CallerMemberName] as the default attribute in the methods. This way you can bypass the "nameof(propertyName)" that you use often. so it would be: void CleanErrors([CallerMemberName] string propertyName = null) { ... }.

[@abdulmagedal-khulaifi6410]

That's a very useful video, thank you so much

[@olepatheonlyone]

If I leave in the code for throwing an exception while loading, should it still try to load after going back with the cancel button even after deleting that line at 18:51?

[@binarybotany3218]

Nice spinner 😎

[@edouardpoitras810]

Sean- The video is great but I can't seem to get the Spinner to show. I have been over the code several times- is the Checkbox control in the dll by chance?

[@pathiashokkumar153]

how to connect with sql database.... i just clone the code but i face difficulty to connect to sql

[@sir1usbl4ck333]

Great content as always, how would we handle the Clear Errors if we wanted to implement multiple errors on the same field ? Like a re-usable "RequiredField" method ?

[@2024manohya]

Thank you

[@jametime7491]

Is there a way we can share the AbstractValidator(of FluentValidator) with this to share the same validation code on back-end + front-end, by using ValidationRule perhaps?

[@jadersouza7352]

Check if StartDate < EndDate would not be a business rule? Wouldn't it be better to address this in the Domain (separation of concerns/DDD)? Would you have any example of MVVM + DDD, implementing the Domain and data access in a Rest API?

[@SingletonSean]

Hey Jader, I feel a bit uneasy about this as well. You could certainly extract this logic to the domain layer and encapsulate it into something more pleasant. I would reallyyyy like to do a series on WPF + ASP.NET, where we build a Rest API with ASP.NET. I've thought of an idea for this series. I spend most of my time building APIs nowadays anyways, so I think this would be fun!

[@bahmankazem2543]

Where is GetValueOrDefault() of dictionary i dont see it:|