Single line if statement with 2 actions

c# if-statement action
Nagelfar picture Nagelfar · Sep 18, 2012 · Viewed 136.8k times · Source

I'd like to do a single line if statement with more than 1 action.

Default is this:

(if) ? then : else

userType = (user.Type == 0) ? "Admin" : "User";

But I don't need an "else" only, I need an "else if"

like that in multi line:

if (user.Type == 0)
    userType = "Admin" 
else if (user.Type == 1)
    userType = "User"
else if (user.Type == 2)
    userType = "Employee"

Is there a possibility for that in single line?

Answer

Jon Skeet picture Jon Skeet · Sep 18, 2012

Sounds like you really want a Dictionary<int, string> or possibly a switch statement...

You can do it with the conditional operator though:

userType = user.Type == 0 ? "Admin"
         : user.Type == 1 ? "User"
         : user.Type == 2 ? "Employee"
         : "The default you didn't specify";

While you could put that in one line, I'd strongly urge you not to.

I would normally only do this for different conditions though - not just several different possible values, which is better handled in a map.

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