extjs4

问题 Good day, sorry for the seemingly broad question title. I am building an ExtJS4 application using php and sql for the user data. Everything was going fine until one day, I notice this error in my java console: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/. Initially, I wasn't that troubled since my application was loading fairly well while testing it in my local

问题 i have a grid and a form, i need to show different items on the form each time we select a row on that grid i ve been looking on how to do this, and found Ext.getCmp('myform').hide() // or .show() and listeners: { selectionchange: function () {...} now i dont know which row is selected so i can specify which item to show thanks 回答1: Try to following code in your grid. listeners:{ itemclick:function(view, record, item, index, e ) { var v = record.get('firstName'); .... .... } } firstName will

问题 My JsonArray is [{ "Id": null, "Name": "One New task", "StartDate": "2010-02-03T05:30:00", "EndDate": "2010-02-04T05:30:00", "Duration": 1, "DurationUnit": "d", "PercentDone": 0, "ManuallyScheduled": false, "Priority": 1, "parentId": 8, "index": 0, "depth": 3, "checked": null },{ "Id": null, "Name": "New task", "StartDate": "2010-02-04T05:30:00", "EndDate": "2010-02-04T05:30:00", "Duration": 0, "DurationUnit": "d", "PercentDone": 0, "ManuallyScheduled": false, "Priority": 1, "parentId": 8,

问题 I have a form with a NumberField that gets values of type float from JSON. If the values happen to be whole numbers, then no decimal places are shown. I would like to show 2 decimal places at all times. Is there a config option for this? Here's my declaration: items: [ { fieldLabel: 'Net Sales', name: 'netSales', allowBlank:false, decimalPrecision:2 }, 回答1: either extend : var myNumberField = Ext.extend(Ext.form.NumberField, { setValue : function(v){ v = typeof v == 'number' ? v : String(v)

问题 Hello I have the next problem, I want to render the html of my display value in a combobox, at the moment I load a store with the html ready, it renders the html when I show all of them, but when I select one, it show the html. What can I do to render the html when the item is already selected? Here are some images to help to explain the inconvenient: This is when Im going to select one http://i.stack.imgur.com/TcfRA.jpg This is when I select one http://i.stack.imgur.com/Kzi9r.jpg The Html

问题 I'm migrating my application from ExtJs 3 to 4 version. I have several comboboxes at my formPanel, and previously I've used hiddenName and all that stuff to submit valueField instead of displayField. All my adaptation works fine (value field IS submitting), but I can't set the default values for comboboxes, they are shown as empty after page load. Previously, I did that just with specifying the 'value' parameter in config. Is there any ideas how to fix that? My code - Model and Store: Ext

问题 I'm very confused which one I need to use for grep object between up() down() and Ext.getCmp(ID). For me, it is easier that define ID to object and retrieve the object by Ext.getCmp('ID') and the code looks more clean. For example: console.log(this.up('panel').up('panel').down('grid')); console.log(Ext.getCmp('myPanel')); which one is better for performance? 回答1: There are severe gotchas with using IDs and getCmp to find your components. The primary issue is that you can not reuse the

问题 Here is the binary for a valid .JPEG image. http://pastebin.ca/raw/2314500 I have tried to use Python to save this binary data into an image. How can I convert this data to a viewable .JPEG image with extjs 4? I tried this, but it doesn't work. data:image/jpeg;base64,+ binary data 回答1: Need to convert it in base64. JS have btoa() function for it. For example: var img = document.createElement('img'); img.src = 'data:image/jpeg;base64,' + btoa('your-binary-data'); document.body.appendChild(img)

问题 I'm trying to create a status bar with clock. I found example in sencha examples, but I'm trying to build it more object oriented way. Ext.define('Urlopy.Components.Statusbar', { extend : 'Ext.ux.statusbar.StatusBar', id : 'basic-statusbar', defaultText : 'Wczytane...', defaultIconCls : 'x-status-valid', iconCls : 'x-status-valid', autoClear : 3000, initComponent : function() { this.currentUserDisplay = Ext.create('Ext.toolbar.TextItem'); this.currentUserDisplay.setText('Not logged in!');

问题 I have a tree panel like http://jsfiddle.net/bmbMy/ I try to change default icons (node and leaf) by using css. But that not working. .x-grid-row .x-grid-tree-node-expanded { background: url('http://icons.iconarchive.com/icons/sekkyumu/developpers/16/Play-Green-Button-icon.png') no-repeat center center !important; } .x-grid-row .x-grid-tree-node-leaf { background-image:url('http://icons.iconarchive.com/icons/graphicrating/koloria/16/Button-Play-Pause-icon.png'); } How can i do that thanks 回答1