Topic: Playing with : Primary Constructors

[kdub_nz]

I really like these, particularly when combined with some of the new syntactic sugar

Code - C#: [Select]

1. Console.WriteLine("Hello, CS12_Playing : PrimaryConstructor");
2.  
3. Product p = new(1024, "Thingie");
4. Console.WriteLine(p);
5.  
6. Product p2 = new(1025, "Thingie.v2", "New super Thingie");
7. Console.WriteLine(p2);
8.  
9. Product p6 = new(1026, null);
10. Console.WriteLine(p6);
11.  
12. Product p7 = new(1027, "", "weird prototype");
13. Console.WriteLine(p7);
14.  
15.  
16. public class Product(int id, string? name, string description = "no description")
17. {
18.    public int Id { get { return id; } }
19.  
20.    public string Name
21.    {
22.       get;
23.       set;
24.    } = (name is null || name == string.Empty) ? "no Name provided" : name;
25.  
26.    public string Description { get; set; } = description;
27.  
28.  
29.    public override string ToString()
30.    {
31.       return $"Product: {this.Id}, {this.Name}, {this.Description} ";
32.    }
33. }
34.  
35.  

No Constructor required when parameters added to newed class instance.

[kdub_nz]

The warning ;
Message   CA1050   Declare types in namespaces   PrimaryConst   

https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/quality-rules/ca1050

is because I've used the new-console-template which does not define a namespace by default when there are NO top level statements.