extjs 4 2

each other 1. The initComponent method is called in the constructor of Ext. Component. Only classes that inherit directly or indirectly from Ext. Component can call the initComponent method in constructor. Let's take a look at the Ext. AbstractComponent source code file src/AbstractComponent. js InitComponent is called in the constructor method. 2. 1) callParent () must be called in the initComponent function of the custom class; otherwise, the call

Need source code, please add QQ:858-048-581First, the characteristics1, using spring MVC static load cache function, in the homepage will javascript files, CSS files and pictures and other static resource files loaded into memory, greatly improve the load speed of ExtJS.2, three skin themes: classic, Gray and Neptune, multi-browser and multi-resolution.3, the model layer, the control layer, the business log

Ext.create creates two by means of a method Panel and adds them as a subassembly to Viewport the medium:var childPanel1 = Ext.create(‘Ext.panel.Panel‘, { title: ‘Child Panel 1‘, html: ‘A Panel‘});var childPanel2 = Ext.create(‘Ext.panel.Panel‘, { title: ‘Child Panel 2‘, html: ‘Another Panel‘});Ext.create(‘Ext.container.Viewport‘, { items: [ childPanel1, childPanel2 ]});The container Layout Manager manages the dimensions and location of

?InitComponent and constructor are different from the contact1. InitComponent This method is called in the Ext.component Constructor (constructor), and only directly or indirectly inherits from the The Ext.component class will only invoke the InitComponent method in the constructor.Take a look at the ext.abstractcomponent source file Src/abstractcomponent.jsThe initcomponent is called in the constructor method2.1) callparent () must be called in the InitComponent function in the custom class, ot

) ) { - return‘‘; the } - returnVal; - } - }, +Gridtrue -}However, there are two problems with this writing, one is that the label value that needs to be displayed does not necessarily appear in renderer, and even if the label is not displayed, the vertical grid line (which adjusts the grid density by the properties of the red part in the configuration code) still appears, which may not be what we want. Through the lookup source discovery, in t

(this.name + " is eating: " + foodType); }});var aaron = Ext.create(‘My.sample.Person‘, ‘Aaron‘); aaron.eat("Salad"); // alert("Aaron is eating: Salad");Note that creating a new My.sample.Person instance here uses a Ext.create() method that uses keywords to create an new instance ( new My.sample.Person() ), but is not recommended new and should be used as a Ext.create habit, as this can take advantage of the benefits of dynamic loading. For dynamic loading See my other tutorial

switch data as you scroll, rendering only a small number of rows at a time. Unlike other infinitely rolling solutions, we can simply reclaim existing rows and replace their values, a bit like each row is being rendered again. This provides two great benefits, one is the ability to achieve variable row heights, and the other is that you can collapse and expand each row at any time. Create an unlimited grid Now let's start by creating our unrestricted scrolling grid. Of course, the first thing to

user's last activity time, and then returns the information that the user is currently logged in, or returns an error. The client resolves the login information. If the token is invalid, such as the user is locked or deleted by the administrator, and so on, the report login failure, jump login interface. otherwise do nothing. This makes it possible to: Any changes in user information will be reflected in a timely manner, such as when the user receives a new system short message, and the nex

$arr= [1, 2,-4, 4, 10,-23, 4,-5, 1]; $max _sum= 0; $sum=0; $new= []; $i= 1; Echo' ; foreach($arr as $key=$value ){ if($sum){ unset($new[$i]); $i++; $sum=$value; }Else{ $sum+=$value; } $new[$i][] =$value; if($max _sum$sum){ $max _arr=$new; $max _sum=$sum; } } Print_r($max _sum

EXTJS 4 tree table component example EXTJS 4 tree table component example I. Overall Ii. Instructions and 2.1 program code and description:2.1.1. Table store Code Description // Enable the tooltip tool Ext. quickTips. init (); // define model Ext. define ('partmodel', {extend: 'ext. data. model ', fields: [{na

) {Ext.Msg.alert (' failure ', ' Fa iled to save user. ') } }); } else {//Display Error alert If the data is invalid ext.msG.alert (' Invalid Data ', ' please correct form errors. ') } } } ]});Layouts form LayoutExtJS the size and position of the application Layout management component, Form Panel you can apply any Container Layout , see For example, you can apply a layout by visiting form fields Sideways HBox :Ext.cre

Original article: http://www.sencha.com/learn/architecting-your-app-in-ext-js-4-part-2/ In extjs application architecture design, we explored how to use extjs to build a Pandora-style application.Program. We adopt the MVC Architecture and apply it to a complicated user interface with multiple views and models. In