angular 2 component communication

This article is a small series combined with official document collation of a more detailed, more complete code tutorials, very good, more suitable for beginners to read. This information is available in the Official document: Http://cn.vuejs.org/guide/components.html Parent-Child Component communication ① access to subassemblies, parent components, root components; this. $parent access to the parent

Under the git command line, execute the following command to complete the setup of the environment:1,NPM Install--global vue-cli Installing the Vue command-line tool2,vue init webpack Vue-demo generates a Webpack project with the Vue command, the project name is Vue-demo3,CD Vue-demo cut-in project4,NPM install installs all dependent packages in the Package.json5,NPM Run Dev Running projectThe parent component passes data to the child componentThen de

Author: Xiao Bo Personal blog: http://blog.csdn.net/eaglet; http://www.cnblogs.com/eaglet 2007/7 Nanjing Background With the development of the Internet, traditional Web applications cannot fully meet the needs of users. Because desktop applications can implement more functions than Web applications, and are easier to access local resources than Web applications, therefore, some desktop applications (such as thin clients) between Bs and CS architectures emerged. These desktop applications exist

--module and module design, in addition to a wide range of design patterns, more than the pattern of a variety of method calls can be communicated. -- How to design low coupling, high cohesion communication between modules. Principle: --1. Using the interface of management, As far as possible the Association interface (manager), in other modules with the manager set and invoke, rather than the association of specific classes (can lead to too complex)

Android Api Component --- translation Fragment Component (2), androidfragment Let's continue with the previous article. Android Api Component --- Fragment Component translation (1) Communication with activity Although a Fragment

Import react,{component} from ' React 'Import Reactdom from' React-dom 'class Childcounter extends component{render () {return( { This. Props.count} ) }}/** Everyone defaults to some of the steps, easy to see * 1. Default value * 2. Initialization status * 3. hook function * 4. Method function **/class Counter extends

Fitler for implicit intent, you must include the default category property"Android.intent.category.DEFAULT"/>Once the Data property is set, an activity is basically determined.Shows the difference between startup and implicit startup: Show Intent directly specifies the name of the next app to jump to. Specify the target by Intent.setclass () or intent.setcomponent (). Advantages: No addressing filtering is required, easy to use, fast, accurate positioning, undisturbed.

This article is based on the source code Scenario Analysis of the Android system, by Luo shengyang I. Test code: ~ /Android/external/binder/server ---- FregServer. cpp ~ /Android/external/binder/common ---- IFregService. cpp ---- IFregService. h ~ /Android/external/binder/client ---- FregClient. cpp Binder Library (libbinder) code: ~ /Android/frameworks/base/libs/binder ---- BpBinder. cpp ---- Parcel. cpp ---- ProcessState. cpp ---- Binder. cpp ---- IInterface. cpp ---- IPCThreadState. cpp ----

1, jumps between different activity can be completed using intent, and the user can also receive the results returned by the activity via the Onactivityresult () method.2, in the Android operating system, provides a number of operational intent, the user only need to set the action to jump and a number of additional data can be implemented by these program calls.The life cycle of the 3,activity consists of the operating state (Running state), the susp

PurposeComponent DiagramThe main purpose is to display the structural relationship between system components. In UML 1.1A component represents an implementation project, such as a file and a running program. Unfortunately, this is in conflict with the term component, which is more common and refers to something like a COM component. Over time and UMLContinuous ve

100 lines of code, certainly no Eventbus robust, the main purpose is to learn the thoughts of others, after their own writing such a class, I believe that the understanding of Eventbus more profound ~ interview, I would like to take a pen to the interviewer to see, haha ~~5. Eventbus Best PracticesThe previous article, many friends asked, if I have multiple method parameters are the same, it is not post one this parameter, will be more than one method call, and at this time I want to invoke the

COM Component Design and Application (2)Guid and InterfaceAuthor: Instructor Yang I. Preface After the book is connected, the problem of saving XLS (Excel) data has been solved in the DOC (Word) composite file. Then, we need to solve another problem: when the word program reads the composite file and encounters XLS data, how can it start Excel? How can I enable EXCEL to read, parse, and display XLS data? Ii

uses inprocserver32) stores the program path name. The clsid structure is defined as follows: Typedef struct _ guid {DWORD data1; // Random NumberWord data2; // time-relatedWord data3; // time-relatedByte data4 [8]; // related to the MAC of the NIC} Guid;Typedef guid CLSID; // component IDTypedef guid IID; // Interface ID# Define refclsid const CLSID // Common statements and Assignment MethodsCLSID clsid_excel = {0x00024500,0x0000, 0 x, {0xc0, 0 x, 0

write component programs, IDE will automatically generate CLSID for you; You can manually write CLSID, but do not repeat it with the CLSID generated by others, so it is not recommended to do it seriously. (However, Microsoft's CLSID is all written manually, which is called "only Xu Zhou officials set fire, click "); In the program, you can use the cocreateguid () function to generate CLSID; Use the tool to generate a guid (note

Typedef struct _ guid {DWORD data1; // random number word data2; // time-related word data3; // time-related byte data4 [8]; // related to NIC Mac} guid; typedef guid CLSID; // component idtypedef guid IID; // Interface ID # define refclsid const CLSID // common statements and value assignment methods CLSID clsid_excel = {0x00024500,0x0000 ,0 x ,{ 0xc0, 0x00,0x00,0x00,0x00,0x00,0x00,0x46 }}; struct _ declspec (UUID ("uid") clsid_excel; Class declspec

the returned object:function () { return { 0 }}If Vue doesn't have this rule, clicking on a button will affect all other instances!Local registrationOnce the global registration, it means that even if you no longer use this component, it will still be loaded with the Vue load.Therefore, for some components that are not used frequently, we use partial registration.We first define an object externally, and the structure is the same as the second

() setSessionContext() ejbActivate()AndejbPassivate()Method to notify a bean that the container component managing the bean is switching the bean status between active and passive (usually in memory or switching to disk ).ejbRemove()Method To make the bean know that it has been deleted from the container.setSessionContext()Method to associate bean with a context object. This context object is used to facilitate bean

receive and send UDP datagram or TCP data streams from network interfaces. 2) message packet buffer Most applications require a message packet buffer, which can balance the mismatch between sending and receiving and the processing speed of the logic layer. 3) Dispatch messages The message of the network component is sent to a pre-processing before the application. When the application logic data goes dow

[Body] Data communication is a very active and popular application field of computer and information technology. A large communication company has developed a major support platform for its business. Here, we simply call it the "communication information service platform", which is used to carry out data services nationwide and globally. This platform is a typica

Remote management technology of database An important link in the modern application of Internet based WAN is the remote monitoring of database. First of all, a brief review of the Internet Database Remote management technology development process and mode: (Recommended article: Ajax topics) Early by writing Cgi-bin program module for database remote management. But the cgi-bin is slow to run, maintenance is inconvenient, now has been basically discarded. The use of