I'm using core animation to transition between different view states in my application. However, I need to find a way to perform different tasks after the animations finish. I understand I can implement a delegate method and use the - (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag; callback, however there's no ...
I have a delegate for my table view, and would like to be able to trigger an action when the user selects a cell in the tableview. How is the method - (NSIndexPath *)indexPathForSelectedRow correctly implemented? Thanks in advance. ...
This simple class public class Test<T> { public static void A(Window wa, Window wb) { wa.Closed += (s, e) => wb.Close(); } } Gets compiled to this (I'm using Reflector to decompile) : public class Test<T> { [CompilerGenerated] private sealed class <>c__DisplayClass1 { public Window wb; ...
I have a background process that i want to regularly maintain the state of gps location. I am not clear on how to invoke a delegate on the main thread in the ui layer when the threaded method is in another class. Here is sample code. My form launches the thread on load: public partial class MainScreen : Form { . . // form st...
I'm trying to find and run a CompiledQuery given the name. How do I access the compiled query by name and how do I then invoke the delegate? Here's as far as I can get - I get the error 'Error binding to target method' public class ActivityRepository { private readonly ActivityDataContext _db; public ActivityRepository() {...
I have a custom NSTableView subclass filled with several custom NSTextFieldCell subclasses. I would like to be able to change the edited cell by using the arrow keys. I am able to accomplish this by creating a custom field editor (by subclassing NSTextView) and returning it from the window delegate like so: - (id) windowWillReturnField...
hi, I think i should be using selectors (or even a different paradigm), but even after R'ing TFM I can't figure out what i'm supposed to do. It's all related to callbacks from a delegate I have my main Model object: @implementation Model @synthesize myConnection; // which is an NSURLConnection ... -(void)someMethod{ ...
I have numerous occurrences of the following in my code: this.webBrowserCtrl.DocumentCompleted -= new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(this.LoginScreenLoaded); this.webBrowserCtrl.DocumentCompleted += new System.Windows.Forms.WebBrowserDocumentCompletedEventHandler(this.AttemptLoginAnalysis); I wish to remo...
Let's say I have a GridViewEx class declared which extends GridView. And inside that class, I have a delegate declared called GetDataPage. So it look like this: public class GridViewEx : GridView { public delegate object GetDataPageDelegate(int pageIndex, int pageSize, string sortExpression, IList<FilterItem> filterItems); ...
Problem: I'm implementing an UITableViewController in conjunction with NSFetchedResultsController. When the UITableViewController is instantiated the NSFetchedResultsController is constructed (substantially in the same way as CoreDataBooks example) with a different predicate, based on selection the user made on the previous controller. ...
Currently looking into distributed memory cache solutions, such as Memcached and Microsoft's AppFabric caching. It seems to me that one of the difficult hurdles in implemented a distributed cache for an application is determining appropriate keys for the hash. A naive approach is to hard code hash keys in your application so that all i...
Hello! I'm trying to create a generalized event for my Close buttons, where they have to close the window but before that set focus to the owner window. I don't want to have an event for every file for that, because that'd be pretty unpractical since I have 30+ windows in my application. (So if I wanted to change that behavior, i'd have ...
Hi all! I have this problem.... in my viewcontroller.h I defined my class like this: myClass* iR; and after: @property (nonatomic,retain) IBOutlet myClass* iR; into myClass.h I added this: @protocol myClassDelegate <NSObject> -(void) didLogon:(bool)isLogged; @end and after: @property (nonatomic, assign) id<myClassDelegate> dele...
I have a delegate delegate string Mathop<T,F>(T a,F b); and I am declaring an event like event Mathop<T,F> someevent; But here I am getting an error. It says 'T' could not be found. I want my Mathop delegate to work as an eventhandler for my event. What I am doing wrong here. ...
Hi, Given the following MSDN sample code, why can't I define the Action delegate "inline": public static void Main(string[] args) { Action someAction = () => Console.WriteLine("Hello from the thread pool!"); Task.Factory.StartNew(someAction); } ...so "inline" like: public static void Main(string[] args) { Task.Factory.S...
I have learned delegate in dotnet that is referencing any function. What does it mean by event coceptually? Is it any reference ? It has a middle layer and use delegates internally. But, what is that middle layer ? Actually, what can we do using event ? or Why should we use it ? Why does event has no return type ? Why is it public by ...
* PLEASE SEE END FOR IMPORTANT EDIT * For various reasons I have something like: delegate void Task(QueueTask queueTask); delegate void QueueTask(Task task); Using Visual Studio Express 2008 this works more or less fine apart from in lambda expressions where it can't deduce if I try call and call queueTask() in the function without ...
Just realized that the delegates I am declaring are not declared with pointer type. so instead of this id <AddViewControllerDelegate> *delegate; I have this id <AddViewControllerDelegate> delegate; Why the last way is correct? Since self is pointer(I guess) then why delegate is not? ...
I have some coding practices involving delegates that I'm not sure of. First of all, if a delegate protocol has no optional methods (all required), is it a recommended practice to use respondsToSelector: to check whether the delegate object implements that method? And second, do I need to check whether the delegate isn't nil before calli...
Hi, I cannot seem to find it in the documentation but I'm looking for a way to run a method whenever a window is displayed on screen after launch of my app or after it has been closed and then reopened again. ...