I'm confused as to why this code won't compile:
var result = $"{fieldName}{isDescending ? " desc" : string.Empty}";
If I split it up, it works fine:
var desc = isDescending ? " desc" : string.Empty;
var result = $"{fieldName}{desc}";
According to the documentation:
The structure of an interpolated string is as follows:
{ <interpolationExpression>[,<alignment>][:<formatString>] }
The problem is that the colon is used to denote formatting, like:
Console.WriteLine($"The current hour is {hours:hh}")
The solution is to wrap the conditional in parenthesis:
var result = $"Descending {(isDescending ? "yes" : "no")}";