Question

How can I bind this using MonoTouch??

#if __IPHONE_OS_VERSION_MAX_ALLOWED < 60000
@interface NSObject (SubscriptingSupport)

- (id)objectAtIndexedSubscript:(NSUInteger)idx;
- (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)idx;
- (void)setObject:(id)obj forKeyedSubscript:(id <NSCopying>)key;
- (id)objectForKeyedSubscript:(id)key;

@end
#endif

Tried this following Documentation but had no luck

[BaseType (typeof (NSObject)), Bind ("NSObject")]
public interface NSObject2 
{
    [Bind("objectAtIndexedSubscript:")]
    NSObject ObjectAtIndexedSubscript (uint idx);

    [Bind("setObject:atIndexedSubscript:")]
    void SetObjectAtIndexedSubscript (NSObject obj, uint idx);

    [Bind("setObject:forKeyedSubscript:")]
    void SetObjectForKeyedSubscript (NSObject obj, NSObject key);

    [Bind("objectForKeyedSubscript:")]
    NSObject ObjectForKeyedSubscript (NSObject key);
}

it gives tons of errors like

Error CS0115: `DocParser.Dispose(bool)’ is marked as an override but
no suitable method found to override (CS0115)

Thanks in advance

Alex.

Answer 1

The binding tool does not have support for generating stubs for extensions to core classes.

The good news is that fundamentally, the work is very simple: you must send a message to an object of instance NSObject.

This means that you can write the code by hand that does something like:

 void GetObjectAtIndex (NSObject target, int objectAt)
 {
     Runtime.GetNSObject (Messaging.objc_msgSend_int (target.Handle, Selector.GetHandle ("objectAtIndexedSubscript:", objectAt));
 }

The above can be cumbersome to write by hand, so you can run the generator on a fictitious class and then copy/paste the results into your own class that takes a parameter “NSObject target” as shown above.