>>>I'm trying to retrieve an application from my database. I have a Data Context in my app called AppSecurityDataDataContext. Here's my query:
>>>
>>>

>>>{ 
>>>    AppSecurityDataDataContext dc = new AppSecurityDataDataContext();
>>>    var app = from a in dc._Applications
>>>                where a.ApplicationId = ApplicationID
>>>                select a;
>>>
>>>}
>>>

>>>
>>>I'm getting "Could not find an implementation of the query pattern for source type 'System.Data.Linq.Table<AppSecurity._Application>'. 'Select' not found. Are you missing a reference to 'System.Core.dll' or a using directive for 'System.Linq'?"
>>>
>>>I have the using statement in my class. This other method works:
>>>
>>>

>>>public static void AddApplication(Application Application)
>>>{
>>>    _Application app = new _Application
>>>    {
>>>        ApplicationName = Application.ApplicationName
>>>    };
>>>
>>>    _DataContext._Applications.InsertOnSubmit(app);
>>>
>>>    try
>>>    {
>>>        _DataContext.SubmitChanges();
>>>    }
>>>    catch (Exception e)
>>>    { 
>>>    }
>>>}
>>>

>>>
>>>Anyone see what's wrong here?
>>
>>==
>
>umm, huh? What does "==" mean?
Not the same as "=":

where a.ApplicationId = ApplicationID