Text Prompt validation with another variable

[kevball2]

is it possible to validate a value of a text prompt based on another variable?

var oldWage = 12.5
var newWage = AnsiConsole.Prompt(
                new TextPrompt<double>("Enter the workers new hourly wage")
                    .Validate(newWage =>
                    {
                        return newWage switch
                        {
                            < oldWage => ValidationResult.Error("[yellow]New wage cannot be less than current wage[/]"),
                            _ => ValidationResult.Success(),
                        };
                    }));

[nils-a]

I'm guessing your question is related to the error your code produces:

CS0150: A constant value is expected

The reason for this is not really dependent on spectre.console but rather on the C# specs for the switch.
You would need to change your switch to a var pattern like this:

return newWage switch
{
  var x when x < oldWage => ValidationResult.Error("[yellow]New wage cannot be less than current wage[/]"),
  _ => ValidationResult.Success(),
};

alternatively you can always use an if - which in this case would (in my opinion) be much, much clearer.

[kevball2]

Thanks @nils-a ! I will give that a go. Appreciate the background on the switch statement as well. New C# are still trying a handle on programming.