Cast int to Enum in Delphi Prism
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24-09-2019 - |
Question
Basically the same as this question, but in Delphi Prism:
I manage to do it from a string:
YourEnum := Enum.Parse(TypeOf(YourEnum), "mystr") as YourEnum
But I tried the following, and get a type mismatch error:
YourEnum := 3 as YourNum
Any ideas what the syntax is for converting int to Enum?
Solution
@Robo , the sintax for convert an int to Enum is
YourEnumVar := YourEnum(3);
or
YourEnumVar := Object(3) as YourEnum;
see this sample
namespace ConsoleAppEnumsDelphiPrism;
interface
type
Language = (Delphi=1,Delphi_Prism,CBuilder);
ConsoleApp = class
public
class method Main;
end;
implementation
class method ConsoleApp.Main;
var
MyEnum : Language;
begin
// String to Enum
MyEnum := Language(Enum.Parse(typeof(Language), 'Delphi_Prism'));
Console.WriteLine(MyEnum.ToString());//Print Delphi_Prism
// Int to Enum
MyEnum:=Language(2);
Console.WriteLine(MyEnum.ToString());//Print Delphi_Prism
// Int to Enum using "as"
MyEnum:= Object(1) as Language;
Console.WriteLine(MyEnum.ToString());//Print Delphi
Console.ReadKey();
end;
end.
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