Short Version How to make the C# nullable type checking compiler realize that the variable customer cannot be null after the call returns: .NET Fi ...

I have to implement support for ISO20022 file format in our application and the "xsd.exe" tool provided with Visual Studio 2022 is frustratingly inade ...

The documentation for nullable reference types says: The compiler uses those annotations to help you find potential null reference errors in your ...

I'm in the process of changing what was formerly a Class into a Struct, as part of an editor patch within Unity. I've read a lot of advice on using st ...

Suppose I have these 2 Interfaces. and One class with inherit Imath1 and Imath2. Here, I can't access the GetSum method from parent Interfaces. ...

I have an "inheritance-tree" which looks like this: Which means: Device is the base class where DeviceType1 and Target(DevX)/TargetWithTeststand(Dev ...

Could anyone help me to convert the below expression to a classic switch since i can't use it? ...

I keep getting this error while querying on an entity that has a Nullable foreign key reference. I have tried enabling and disabling nullable referen ...

I have this code where the compiler says that myObj in ValidateMyObj(myObj) may be null. Since it has to be not-null for string.IsNullOrEmpty to retur ...

I have a class: And a subclass: I would like to teach the compiler that Holder is not null when IsRegistered is true. If both props were declar ...

I noticed that the following code seems to compile just fine, when I would've expected multiple errors: Math, MathF, and Console are all static cla ...

A problem occurred while creating a singleton using an interface with static properties. The problem is that I can't find the Instance property def ...

I have an interface which has a property with public get and protected set. Yet when I implement this in my class i get an error saying it must be pu ...

I'm calling the following method in a loop while it is true, which leads to automatic reconnection. Since I'm using the using keyword, does it dispose ...

I really loved the idea of default implementations on interfaces in C#8. But after trying it the disappointment was big... So here's a simple example ...

I just created a new ASP.NET MVC application using .NET 6.0 and C# 10, and in this project template the Nullable Reference Types feature is enabled by ...

So I'm trying to utilize C# 8 in my .NET 4 web application by adding two entries in my .csproj file right inside the PropertyGroup node. But for so ...

I'm trying to use a local function in my asp.net web-site: But i get an compile-time error: CS8026 Feature 'local functions' is not available i ...

I'm currently coding an function of input object array, and have read many example, then I found these example in EntityFrameworkCore document: Is ...

I have the following abstract class: I want to use this class as a base class for all my Entity Framework entity classes. All is good except I hav ...