Question

I often find myself writing

var message = "Hello {0}";

and then going back and typing in

var message = string.Format("Hello {0}", world);

It would be nice if as I were typing the string, when I put the ” at the end, resharper figured out there was a parameter in the string and immediately surrounded the string with the string.Format method and put the cursor at the first argument.

Is there a straightforward way to do this? I’m using Resharper 6.1

Answer 1

Just type it in dumber:

 "Hello " + world

Alt+EnterEnter, done¹:

 string.Format("Hello {0}", world);

Obviously, this also works when the whole thing is much more complex. I know it will strip useless calls to .ToString(), and I suspect it will automatically lift any format expressions, like

 int i = 42;
 "i = " + i.ToString("X2"); 

Alt+EnterEnter

 string.Format("i = {0:X2}", i);

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¹ If you’re unlucky/the surrounding code contains many things that trigger Resharper suggestions(?) you might have to position the cursor over one of the + operators