objective c delegate

In custom user controls, we often add custom events, and then we use the delegate (delegate). In development, it is often used to login. Then, we make the login interface into a control, it is more convenient to use it later. The login interface is simple, do it casually, it has a "login" button. We need to click the "Login" button, it can perform our other pages defined by the login operation, then nee

This article mainly introduces the use of javascript Delegate blur and focus. The example analyzes the usage of javascript Delegate and the usage skills for common browsers, for more information about how to use the javascript Delegate blur and focus, see the example in this article. Share it with you for your reference. The specific analysis is as follows: Oper

usingSystem;usingSystem.IO;namespaceconsoleapplication2{Delegate voidDintx); classProgram {Static voidMain (string[] args) {D CD1=NewD (C.M1); CD1 (-1); Console.WriteLine (); D CD2=NewD (C.M2); CD2 (-2); Console.WriteLine (); D CD3= CD1 +CD2; CD3 (Ten); Console.WriteLine (); C C=NewC (); D CD4=NewD (C.M3); CD3+=CD4; CD3 ( -); Console.WriteLine (); CD3-=CD4; CD3 (Ten); Console.WriteLine ();

*) name Deleagete: (IDDelegate; One-(void) Delegatethingwithsomebody: (lfnurse*) nurse; A - @endImplementing File Lfmather.m1 #import "LFMather.h"2 #import "LFNurse.h"3 4 5 @implementationLfmather6 7-(Instancetype) Initwithname: (nsstring*) name Deleagete: (IDDelegate{8 9 if(self =[Super Init]) {TenSelf.childname =name; OneSelf.Delegate=Delegate; A } - returnSelf ; - } the --(void) Delegatethingwithsomebody: (Lfnurse *) nurse{ - -NS

usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Linq;usingSystem.Text;usingSystem.Threading;usingSystem.Threading.Tasks;usingSystem.Windows.Forms;namespaceinvoketest{ Public Partial classForm1:form { PublicForm1 () {InitializeComponent (); } Public voidUpdateForm (stringPARAM1,stringParm2) { This. TextBox1.Text = param1 +Parm2; } Public Delegate voidUPD

C # Delegate delegate example event-driven Using system;Using system. Collections. Generic;Using system. text;Using system. Threading;Using system. runtime. remoting. messaging;Using system. IO;Using system. net;Namespace consoleapplication2{/// ///************************************* ************************************/// Program Author: Li weitao/// QQ: 12666954/// Send messages and drive event

Feature source code (sector progress) and Delegate are used in open events, sector delegate 1: Slice progress view and Application First, create a slice view and input the progress value. #import #import "LHProgressView.h"#define MinProgress (1.0 / 16.0)@implementation LHProgressView- (id)initWithFrame:(CGRect)frame{ if (self = [super initWithFrame:frame]) { self.backgroundColor = [UIColor clearC

Example Analysis of the Use of javascript Delegate (Delegate) blur and focus, delegateblur This article describes how to use the javascript Delegate blur and focus. Share it with you for your reference. The specific analysis is as follows: Opera (9.5b) cannot correctly trigger all focus and blur events twice;Therefore, the focus and blur event processing function

[. NET Basics]-delegate, event, thread (3),. net delegate In the previous two articles, we have learned about delegation and events. In this article, we will take a look at the thread.1. A form program has one thread by default (equivalent to a store with only one clerk). This default thread is called the UI thread/main thread. 2. Relationship between processes and threads: A. A process contains the resourc

The Code is as follows: Public Delegate void selectlable (string E );Public partial class form1: Form{Public form1 (){Initializecomponent ();Checkbox1.enabled = false;Checkbox2.enabled = false;Checkbox3.enabled = false;If (STR = ""){Label1.text = "enter a string! ";}}Public String STR {get {return textbox1.text. tostring () ;}set {STR = value ;}} Private void button#click (Object sender, eventargs E){If (checkbox1.checked = true checkbox2.checked = f

Delegation, events, and Observer Design Patterns Example The above example is not enough for the following explanation. Let's take a look at a new example. Because we have already introduced a lot of content, the progress in this section will be slightly faster: If we have a high-end water heater, we can power it on. When the water temperature exceeds 95 degrees: 1. The speaker will start to send a voice to tell you the temperature of the water; 2. the LCD screen will also change the display of

Using delegates:Can be thought of as declaring a protocol in a class, and another class as a delegate to implement the method within this protocol.For example, when creating a table in the iphone, you need to use the UITableView class. However, this class does not know the title of the table, does not know how many parts or rows need to be displayed, and does not know what should be displayed in each row or cell in the table. So it delegates this seri

JQuery event delegate instance analysis and jquery delegate instance analysis Event delegation is mainly implemented by event bubbling. precise understanding of event delegation can help improve code execution efficiency. Let's take a look at a code example: In the above Code, the bind () method is used to bind a click event handler function for each td, so that when you click a cell, the text in the cell

ThenLstdelegates.freeElseLstdelegates.delete (Lstdelegates.indexof (self));inherited;Endfunction Delegatevar M:tmethod;P:pointer;BeginM:=DELEGATES[I-1];P:[email protected];Result:=t (p^);Endfunction DelegateBeginResult:=not (IIf Result=false ThenINC (i)Elsei:=0;EndProcedure Denotify.dorun (Sender:tobject);BeginWhile not getruneof () doesGetrun () (Sender);EndThis method has a great disadvantage, that is, an event type to derive a class! But really, there's no problem.It seems that things have t

This is a very low-level error, before the PO main rush to complete the task, but also did not pay attention to see, window jumping windows as shown:This process is all the click and B*pb,pb->show, and the same a*pa,pa->show, there is a memory leak in the process, because the window is constantly new and then show,Even if there is data, but new window, the old no, that the old data does not exist in the new window, because the embedded Development Board memory is not very large, if used for a lo

Delegate + Lambda = automatic sort (1), delegate Lambda sort We can always see and use the field sorting function, that is, the effect of clicking Automatic Sorting in the file resource manager: To implement this function, you must first make the following settings in the html code of the interface: That is, set the sortable attribute for the field to be sorted, that is, set the field to be sorted. Since

This example describes the JavaScript delegate (Delegate) Blur and focus usage. Share to everyone for your reference. The specific analysis is as follows: Opera (9.5b) for all focus and blur events, can not be correctly triggered two times;Therefore, the processing functions of the focus and blur events can be delegated to the capture phase of the event. Example 1 (List Class): code is as follows:

The essence of the chain is that you put a bunch of things to execute in a list, when you want to trigger a set of things, you do not need to write one by one (such as the factory canteen dinner, this method is implemented, to let the chef a time in the cafeteria waiting to play rice, b staff at a certain time line, b staff may more than one , should be notified that Class C staff at another time in line to eat, the last Class D cleaners at another time to clean up the canteen), below you only n

Jquery delegates on () | off () deletes the delegate | one () executes the delegate only once, jqueryoff 1

("cc:{0};d: {1}", CC, D); Numberchangerint> NC1 =Newnumberchangerint>(Addnum); Numberchangerint> NC2 =Newnumberchangerint>(Multnum); NC1 ( -); Console.WriteLine (num); NC2 (5); Console.WriteLine (num); Console.readkey (); } Public Static voidSwaprefT LHS,refT RHS) {T temp; Temp=LHS; LHS=RHS; RHS=temp; } } Public classMygenericarraywhereT:struct { Privatet[] Array; PublicMygenericarray (intsize) {Array=NewT[size +1]; } Pub