c# - Why the ternary operator is not working this way? -


why not compile? wrong in following code?

(_dbcontext == null) ? return _dbcontext = new productandcategoryentities() : return _dbcontext;

if restate in terms of if compiles:

 if (_dbcontext == null)                    return _dbcontext = new productandcategoryentities();                else return _dbcontext;

the things on either side of : in conditional expression expressions, not statements. must evaluate value. return (anything) statement rather expression (you can't x = return _dbcontext;, example), doesn't work there.

new productandcategoryentities() , _dbcontext both seem expressions, though. can move return outside of conditional expression.

return (_dbcontext == null) ? (_dbcontext = new productandcategoryentities()) : _dbcontext;

although, in case, it'd better lose ?: , go straight if.

if (_dbcontext == null) _dbcontext = new productandcategoryentities(); return _dbcontext;

which bit more straightforward. returning value of assignment looks bit sketchy.


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