Property Grid for Cocoa

I didn't find anything similar to .NET PropertyGrid class in Cocoa, so I started to write my own version. I use information fro开发者_高级运维m runtime to get properties of object:

Class reflectedClass = [reflectedObject class];
uint propertyCount = 0U;
objc_property_t *properties = class_copyPropertyList(reflectedClass, 
                                                     &propertyCount);

And this for getting/setting values in NSTableView:

- (NSString *)propertyNameAtIndex:(int)index
{
    return (NSString *)[cachedPropertyNames objectAtIndex:index];
}

- (id)propertyValueAtIndex:(int)index
{
    return [reflectedObject valueForKey:[self propertyNameAtIndex:index]];
}

- (void)setPropertyValue:(id)value atIndex:(int)index
{
    [reflectedObject setValue:value forKey:[self propertyNameAtIndex:index]];
}

For syncing updates with reflectedObject is used basic KVO:

[reflectedObject addObserver:self
                  forKeyPath:propertyName
                     options:NSKeyValueObservingOptionOld | 
                             NSKeyValueObservingOptionNew
                     context:NULL];

This solution works, but I have two problems that I need to fix:

1. I need to simulate somehow .NET attributes, so I can choose right editor for property. Text boxes is not good for all situations.
2. Different cell editor for each row, so for booleans checkboxes, for strings textboxes, etc.

I am still beginner in Cocoa so sorry if I am asking for something really basic.

UPDATE: I need something like this (picture from Xcode->Get Info->Build):

PropertyGridCocoa http://www.adorior.cz/Images/PropertyGridCocoa.png

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Cocoa has no such view built in to the framework. If no-one else has created one and released it as open source, you will need to create one from the ground up.

It's probably easier to hand-craft a UI that matches the underlying model.