Trying to use C# to print a string that has a parameter while also testing if it exists

string curFile = @"c:\temp\test.txt";
Console.WriteLine(File.Exists(curFile) ? "{0} exists.", curFile : "File does not exist.");

It came back with an error though. What would be the correct way of writing this?

Looks like you're using string.Format syntax inside a ternary.

You can either supply the string.Format wrapper.

Console.WriteLine(
   File.Exists(curFile) 
     ? string.Format("{0} exists.", curFile) 
     : "File does not exist.");

Or go for string interpolation with a leading $ sign.

Console.WriteLine(
   File.Exists(curFile) 
    ? $"{curFile} exists." 
    : "File does not exist.");

this is better i think:

string curFile = @"c:\temp\test.txt";
Console.WriteLine(File.Exists(curFile) ? $"{curFile} exists." : "File does not exist.");

here shows what is "$" doing.

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