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C# C# Objects Encapsulation and Arrays Ternary If

Posted by Scott Upstell
Scott Upstell
3,428 Points

Did you include the boolean expression to evaluate?

I copied the exact method that the video on this used to convert the if statement to a Ternary If statement, and i keep getting this error:

"Did you include the boolean expression to evaluate"

The problem for this code doesn't state any sort of boolean statements or evaluation, and I have no idea how to fix this code.

CodeChallenge.cs 
int value = -1;
string textColor = null;

//if (value < 0)
//{
//    textColor = "red";
//}
//else
//{
//    textColor = "green";
//}

return (value < 0) ? (textColor = "red") : textColor = "green";

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

The way ternaries are typically used (and as shown in the video) is to evaluate an expression and return one of two values. The entire ternary can then be the right-hand side of an assignment. Check the video example again.

Controlling statement execution (like two different assignments) is better done with "if".

And "return" can only be used inside a function.