How can I pass a parameter to a selector?

cocoa, nssearchfield, objective-c, parameters

Solution

You can't do exactly what you're describing. A selector doesn't do anything or accept any parameters — it's just the name of the message to send. You can only pass arguments when you actually send a message. However, controls always pass themselves as an argument to their actions, so what you need is a wrapper method along these lines:

- (void)doSearchFromSearchField:(NSSearchField *)sender {
    [self doSearchWithQuery:[sender stringValue]];
}

And set that as the action.

Problem

I have an NSSearchField: ``` [searchField setAction:@selector(doSearchWithQuery:)]; ``` Here is my doSearchQuery: ``` -(void)doSearchWithQuery:(NSString*)query{ ``` How can I pass the contents of my searchfield into doSearchWithQuery?

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