Nstextfield setstringvalue not updating
There could be a scenario in which a application would need to know whether the user is Admin or not, before or after startup to allow/block user from using it’s certain functionalities.To achieve this kind of “Authorization” we need to ask user about his account password and check it against his username.//Correspondingly, the function will return NO if either //1. It's one of the last classes in the UI controls inheritance chain, with other classes like NSButton, or NSText Field.So define a class variable for that purpose ( for instance, init Value ).We will need also to create a NSString to update the NSText Field, and that string will be something like "Value: 24".
This can done programmatically, or by loading UI elements from a Xib file.The demo app’s xib file has several buttons that are used for launching save panels.Here’s the entirety of the code for a basic/unadorned version: @interface App Delegate() @property (nonatomic, strong) NSSave Panel *save Panel; @end @implementation App Delegate - (void)application Did Finish Launching:(NSNotification *)a Notification - (void)application Will Terminate:(NSNotification *)a Notification - (IBAction)launch Default Save Panel:(id)sender @end This gives us that basic save panel shown in the first image in this post.Double click the Main file, to open Interface Builder, and work the interface out.Then, it will be time to create the application's controller. Name the first one output Text Field, anf type it as NSText Field.