I read on a blog that C# 7 will feature record types
class studentInfo(string StudentFName, string StudentMName, string StudentLName);
However when I tried it, I get these errors
CS0116 A namespace cannot directly contain members such as fields or methods
CS1022 Type or namespace definition, or end-of-file expected
CS1514 { expected
How is this supposed to work?
Update: it's a feature of C# 9 https://devblogs.microsoft.com/dotnet/welcome-to-c-9-0/
C# 9 now contains record types.
public record Person
{
public string LastName { get; }
public string FirstName { get; }
public Person(string first, string last) => (FirstName, LastName) = (first, last);
}
Record types are not (yet) implemented in C#. See the proposal in the official GitHub repository:
https://github.com/dotnet/csharplang/blob/master/proposals/records.md
Discuss or vote at https://github.com/dotnet/csharplang/issues/39
Record types were on the roadmap for C# 7.0, but were ultimately delayed until a later version of the language.
To quote Mads Torgersen in reply to this blog post,
[Primary constructors] are still on the radar, along with the related concept of record types (which we considered for C# 7.0), and I am hopeful that we can land on a better design – maybe one that encompasses both.
As of C# 7's release, the GitHub proposal for this language feature still indicates that the implementation is "In Progress."
[Rewritten to reflect the current state of things]
To add to the other answers, you can easily track when C# features are pencilled in to appear in C# these days. For example, the Champion "Records" issue shows the state of thinking around records. Records is now scheduled for C# 9. But that feature was previously touted for C# 6, C# 7 and C# 8 too, so it remains only an aspiration.