Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# C# Objects Encapsulation and Arrays Ternary If

Kiem Ruach
Kiem Ruach
2,267 Points
Posted by Kiem Ruach
Kiem Ruach
2,267 Points

C# challenge error

"Did you include the boolean expression to evaluate?" When i did include it.

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

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

1 Answer

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

It doesn't look like you've changed any of the original code yet. You need to replace all the conditional stuff with a ternary expression.

The first part of the ternary will be the boolean expression it is looking for.

Kiem Ruach
Kiem Ruach
2,267 Points
Kiem Ruach
Kiem Ruach
2,267 Points

int value = -1; string textColor = null; (value <0) ? textColor = "red'; : textColor = "green";

this is the code that i really got "DId you include boolean expression?". this snapshot was a mistake, but it tells me the same thing.

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

A ternary is intended to be used as an expression and not to control execution flow. Try making the ternary the right side of a single assignment, with both choices just the values to be used instead of complete statements.