Question

I want to populate NSDictionary with text from UITextFields. Here is what I try

[self delegate]populate:[NSDictionary dictionaryWithObjectsAndKeys:
                                 [self.username.text], @"username",
                                 [self.password.text], @"password"
                                 nil];

But I get expected identifier.
What is wrong here ? Why can’t pass [self.*] directly ?

I have tried also

[self delegate]populate:[NSDictionary dictionaryWithObjectsAndKeys:
                                 [NSString stringWithFormat:@"%@", [self.username.text]], @"username",
                                 [NSString stringWithFormat:@"%@", [self.password.text]], @"password"
                                 nil];

still not working

Answer 1

[self.username.text] is invalid syntax.

The message sending syntax is [object message]. The dot syntax is object.property. Since a property access usually results in an object, you can combine them, but there still needs to be a message part. If you just put the dot syntax inside brackets, you’re missing the message part: [object.property <missing message>].

Change it to either self.username.text (no brackets) or [self.username text].

As bdesham points out (I assumed this was just a typo here), you’re missing braces around the whole snippet. [self delegate] is the object to which you’re sending the message populate:

[[self delegate] populate:<another message send here, to NSDictionary>];