« Csharp 11 » : différence entre les versions
| (Une version intermédiaire par le même utilisateur non affichée) | |||
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= [https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/properties#required-properties Required members] = | = [https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/properties#required-properties Required members] = | ||
{{info | Don't confuse {{boxx|required}} with non-nullable.}} | {{info | Don't confuse {{boxx|required}} with non-nullable. It's valid to set a {{boxx|required}} property to {{boxx|null}} or {{boxx|default}}.}} | ||
Any code that creates a new Item must set this property using an [https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/object-and-collection-initializers object initializer]. | Any code that creates a new Item must set this property using an [https://learn.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/object-and-collection-initializers object initializer]. | ||
<kode lang='cs'> | <kode lang='cs'> | ||
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} | } | ||
var item = new Item { Name = "item1" }; // object initializer for Name property is now | var item = new Item { Name = "item1" }; // object initializer for Name property is now required | ||
</kode> | </kode> | ||
= [[String#Raw_string_literals|Raw string literals]] = | = [[String#Raw_string_literals|Raw string literals]] = | ||
Dernière version du 18 janvier 2025 à 14:12
Links
Required members
 |
Don't confuse required with non-nullable. It's valid to set a required property to null or default. |
Any code that creates a new Item must set this property using an object initializer.
|
public class Item
{
public required string Name { get; set; }
}
var item = new Item { Name = "item1" }; // object initializer for Name property is now required
|