Operator '+' cannot be applied to operands of type "string" and "method group" [closed]

Question

I am checking to see if a Directory exists with this code:

while (Directory.Exists(currentDirectory + year.ToString))
{
  // do stuff
  year++;
}

year is a normal integer, currentDirectory a string. Unfortunately this Operation gives me the "Operator '+' cannot be applied to operands of type "string" and "method group" error mesage. I don't really want to create a new string on each Iteration when I only need to increment.

Answer 1

ToString is a method. You need to invoke it; so you're missing () after ToString.

Change it to

while (Directory.Exists(currentDirectory + year.ToString()))
{
    // do stuff
    year++;
}

And it should work :)

Answer 2

Missing brackets () after ToString. You need to change it to the following:

while (Directory.Exists(currentDirectory + year.ToString()))
{
  // do stuff
  year++;
}