C# 9 Records and Init Only Settings Without . NET 5 Records are basically just syntactic sugar on top of classes, and modreq used by init only setters have been around a long time Public Init Only Setters Permalink To use a public or protected property with an init only setter, the consumer must be using a C# compiler that supports C# 9
Records and Init-only Setters in C# | C# Workshop Choose wisely between classes and records: Select either a class or a record based on whether you need to encapsulate mutable behavior, in which case a class might be more suitable Use init-only setters judiciously: Init-only setters are most useful when enforcing data integrity rules or business logic constraints within your application
c# 9. 0 - What Init only setters provides and what is the . . . Init only setters provide consistent syntax to initialize members of an object Property initializers make it clear which value is setting which property The downside is that those properties must be settable With that, you don't need to provide the value at the beginning and the constructor and you can do it afterward:
The C# 9 init-only Setters - CodeProject Because this keyword is used instead of the set keyword for properties, this means we could also have classes declared with only some of the properties being marked with init for immutability purposes like so: class TestClass3 { public int TestClass3IntProperty { get; set; } public int TestClass3IntProperty2 { get; init; } }
Best Practice: Start using C# Records for DTOs instead of . . . C# 9 introduced records as a new reference type Unlike classes, Records use value-based equality If the values of all fields in two records are equal, then those two Records are equal Records also have init-only properties, meaning they only can be set in the constructor or using a property initializer
Upgrading Old C# to C# 9: Init Only Setters - Humble Toolsmith This is why C# 9 introduces Init Only Setters Instead of using the “set” keyword, the property is defined with the “init” keyword This allows the property to be set in the object initializer, specifically in this case, in the SqliteDbCore class But the property cannot be changed after the object creation is done This isn’t a
C# A to Z: Assignment with Init-Only Setters - DEV Community Without Init-Only Setters Init-only setters were introduced with C# 9, allowing developers to create immutable properties in C# classes Before we get into the new feature, let's explore how your code would look without this feature The PatientInfo class in the >NET Core 3 1 project contains a set of properties for a hospital patient, as shown