Am 17.12.2011 um 19:59 schrieb Robert Monaghan: > Hi Everyone, > > Perhaps someone can help point me in the right direction on this: > > I have an NSObjectController that maintains a UI for me. > I have an NSTextField which contains numerical value. You could type in a > number, which populates an NSNumber object deep inside my code.. > Magically, my NSObjectController does its thing and maintains the UI. Very > cool stuff! > > I just recently updated my bindings for this NSTextField, so that a a Min and > Max Value is respected.
Interesting! How did you do that via bindings? > As a test, I typed a value which is outside the Min/Max value, to see what I > need to implement. To my surprise, a sheet is created saying "The Value 500 > is too large." It prompts the user to Discard or Keep Change. > Where did this come from? And how do I override this? Implement a KVC validation method for your property. I guess. See file:///Library/Developer/Shared/Documentation/DocSets/com.apple.ADC_Reference_Library.CoreReference.docset/Contents/Resources/Documents/documentation/Cocoa/Conceptual/KeyValueCoding/Concepts/Validation.html#//apple_ref/doc/uid/20002173 > I can't find info in the docs. I do see a vague reference to a "sheet" in the > NSObjectController Docs, with add/remove selectors, etc. But nothing concrete. > Ideas? > > Thanks! > > bob. > > > _______________________________________________ > > Cocoa-dev mailing list ([email protected]) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/magnard%40web.de > > This email sent to [email protected] > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
