store

问题 I have one question. Is it possible to get all records which are loaded in a store when the filters are being added to store? For example, if I load into the store 34 records and then apply filters and there is only 15 left, could I get those 34 records without clearing filters? 回答1: Edit: This was originally answered for Ext 4.2, where snapshot was public and documented. It is gone nowadays. So here's an update for Ext 5 and 6. Ext 5 / 6 One liner: var allRecords = (store.getData().getSource

问题 I'm beginning development of an app in extjs. I'm using the MVC approach, as provided in the extjs documentation. I have some dynamic data which needs to present the user with a set of accordion controls. I've got the data in a store, but I do not know how to dynamically create the accordion items (unlike grid panels, there doesn't appear to be a store data method). Here is my current accordion view code - with static items: Ext.define('BP.view.induction.LeftPage', { extend: 'Ext.Panel',

问题 I've been trying to learn to work with Models and Stores. But the proxy bit is confusing me a lot. So I'm going to list out my understanding here - please point out the gaps in my understanding. My understanding Models are used to represent domain objects. Models can be created by ModelManager, or by simply using the constructor Models are saved in Stores Stores may be in memory stores, or can be server stores. This is configured using Proxy. Proxy tells the store how to talk to a backing

问题 I've been trying to learn to work with Models and Stores. But the proxy bit is confusing me a lot. So I'm going to list out my understanding here - please point out the gaps in my understanding. My understanding Models are used to represent domain objects. Models can be created by ModelManager, or by simply using the constructor Models are saved in Stores Stores may be in memory stores, or can be server stores. This is configured using Proxy. Proxy tells the store how to talk to a backing

问题 I am trying to plot the results of my Matlab programme using a for loop which operates from 1 to 10 in increments of 0.1. However I am getting the following error when I attempt to run my code: Subscript indices must either be real positive integers or logicals. Error in BEM (line 101) store_sigma(:,TSR)=sigma; This is my entire code: % Inputs R=0.4; % Radius of Rotor B=3; % Number of blades U=1.73; % Fluid velocity Rho=998; % Fluid Density N=9; % Number of Blade Elements Cp_estimate=0.5; %

问题 been working on this for hours, thought i had it down but it turns out i have it all wrong. The assignment is to Write a program that computes your semester average and letter grade for the course *******The user will enter these numbers:****** A list of quiz scores. Each score is in the range 0–10. The user enters the sentinel value –1 to end the input. Drop the lowest quiz score.* A list of project scores. Each score is in the range 0–10. The user enters the senti- nel value –1 to end the

问题 I am having trouble finding the rigth directory on my online server. is there a function that returns the folder the file is stored in? 回答1: In PHP>=5.3 use __DIR__ and before use dirname(__FILE__) http://php.net/constants.predefined http://php.net/dirname 回答2: Use the magic constant __DIR__ You can read more about the magic constants here: http://php.net/manual/en/language.constants.predefined.php 回答3: http://php.net/manual/en/function.getcwd.php Returns the current working directory on

问题 I am trying to get data that is being passed and load it into various textfields. Right now, I have a .html file which contains this: <script type="text/javascript"> var res = {"address":"","city":"","state":"","zip":""}; </script> Then, I have a .js file which contains my entire layout with all the textfields, etc. and my entire store. This is what I have so far as my store trying to load the data, but I am not sure what the correct method is to try and get the data from the html file and

问题 Is there a callback for store.sync()? I am trying to do: store.sync(function(){ alert('1'); }); but it does not work. The store is a local store. 回答1: There is no 'callback' for sync(). In order to achieve this behaviour, you will need to listen to the store's write event. Check this solution. 回答2: You can try: store.sync({ callback: function (records, operation) { alert('1'); } }); 回答3: There is the way to listen success event store.on('write', function(){ alert('ready'); }); store.sync();

问题 I have a list in which i retrieve multiple mp3 files. Now when i want to add files again, i pick files from picker but they overwrite the previous files in IReadOnlyList filesList i want that if i choose files again...then they should go to the next index of filesList Ex: First time i pick 3 files and they go to filesList[0], filesList[1], filesList[2]. Now I again click on addmusicbtn to pick files and i pick 2 files. Now what i want is to get these files on filesList[3] and filesList[4].