c# - nesting three if statements -

i check if condition "_email" met first time , pass result next if statement check , again after that. if _email null, want empty string last check.

here code

    private string _email;     public string email     {                 {             if (string.isnullorempty(_email))             {                 _email = getemailaddress();             }             else if (_email.isemptyornull())             {                 _email = user.current.preference("email");             }             else if (_email.isemptyornull())             {                 _email = "";             }             return _email;         }     } 

i not sure doing wrong. please let me know if need more info.

you need remove else in code because first if clause condition met executed

and isnullorempty static method on string class. use string.isnullorempty instead of _email.isnullorempty. (i compiler error when try _email.isnullorempty)

private string _email; public string email {         {         if (string.isnullorempty(_email))         {             _email = getemailaddress();         }         if (string.isnullorempty(_email))         {             _email = user.current.preference("email");         }         if (string.isnullorempty(_email))         {             _email = "";         }         return _email;     } } 

and recommend moving code method called getemail reduce code in property (it gets ugly in opinion)