C# switch variable initialization: Why does this code NOT cause a compiler error or a runtime error?

Question

...
case 1:
   string x = \"SomeString\";
   ...
   break;
case 2:
   x = \"SomeOtherString\";
   ...
   break;
...

Is there something that

Answer 1

move the string declaration to before the

switch(value)

statement. Then assign x for each case.