wcf - Checking for Linq Variables -


i m making wcf service login. code accesssing db data using linq :

                 var result = detail in dc.tbl_user_masters detail.user_type_id == 2                   select new userverification                  {                      uname = detail.user_login_name,                      password = detail.user_pwd                  };

where userverification class has uname , password properties stored..now how check variable if null we'll not allow login...i dont know how linq..

you need filter on user/password you're trying authenticate:

var givenuname = "robertpaulson"; var givenpassword = "bob";  var result = (     detail in dc.tbl_user_masters     detail.user_type_id == 2     detail.user_login_name == givenuname && detail.user_pwd == givenpassword     select detail     ).singleordefault();

now result either null or have details authenticated user.


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