Skip to main content

ExtJS4 - Dynamically Adding Columns to a grid panel

Code Snippet for Dynamically Adding Columns to a grid panel in Extjs4
Ext.create('Ext.data.Store', {
    storeId:'simpsonsStore',
    fields:['name', 'email', 'phone'],
    data:{'items':[
        { 'name': 'Lisa',  "email":"lisa@simpsons.com",  "phone":"555-111-1224"  },
        { 'name': 'Bart',  "email":"bart@simpsons.com",  "phone":"555-222-1234" },
        { 'name': 'Homer', "email":"home@simpsons.com",  "phone":"555-222-1244"  },
        { 'name': 'Marge', "email":"marge@simpsons.com", "phone":"555-222-1254"  }
    ]},
    proxy: {
        type: 'memory',
        reader: {
            type: 'json',
            root: 'items'
        }
    }
});

Ext.create('Ext.grid.Panel', {
    id: 'gridpanel',
    title: 'Simpsons',
    store: Ext.data.StoreManager.lookup('simpsonsStore'),
    columns: [
        { header: 'Name',  dataIndex: 'name' },
        { header: 'Email', dataIndex: 'email', flex: 1 },
        { header: 'Phone', dataIndex: 'phone' }
    ],
    height: 200,
    width: 600,
    renderTo: Ext.getBody(),
        dockedItems: [{
            xtype: 'toolbar',
            items: [
                {
                text: 'add column',
                handler: function(){
                    var gridView = Ext.ComponentQuery.query("gridpanel")[0];
                    var column = Ext.create('Ext.grid.column.Column', {text: 'New Column'});
                    gridView.headerCt.insert(gridView.columns.length, column);
                    gridView.getView().refresh();
                }}

            ]
        }]
});

Comments

Post a Comment

Popular posts from this blog

Ext4 Apply Store Filtering

In extjs4.1: There are many way for store filtering . Some of code i give here Filtering by single field: store . filter ( 'eyeColor' , 'Brown' );   Alternatively, if filters are configured with an  id , then existing filters store may be  replaced by new filters having the same  id . Filtering by single field: store . filter ( "email" , /\.com$/ );   Using multiple filters: store . filter ([ { property : "email" , value : /\.com$/ }, { filterFn : function ( item ) { return item . get ( "age" ) > 10 ; }} ]);   Using  Ext.util.Filter  instances instead of config objects (note that we need to specify the root config option in this case): store . filter ([ Ext . create ( ' Ext.util.Filter ' , {   property : "email" , value : /\.com$/ , root : 'data' }),   Ext . create ( ' Ext.util.Filter ' , {   filterFn : function ( item ) {   return item . get ( &
Post a Comment
Read more

ExtJS - Grid panel features

What can we do with ExtJS GridPanel? I have to develop a lot of applications in my web app and I see that grid component of ExtJS may fit in. However, I am not aware of what all things I can do with the - off the shelf available framework pieces - available plug-ins in the marketplace and - custom development through my own developers This is a typical question that we hear from the business users who wants to design an application by keeping the framework’s capability in perspective. In this article I have tried to put the list of stuff you can do with grid and hopefully that shall enable you to take advantage of the beauty of ExtJS. Pre-requisites This article assumes that you are familiar with basics of ExtJS What are the available options? In this section I will be taking you through some of the commonly seen usage of ExtJS grid panel. While covering all the capabilities of grid may not be possible, I am sure it will be helpful for the business users who want to
8 comments
Read more

EXTJS - Way to get a reference to the viewport from any controller

An easy way to get a reference to the viewport from any controller Here's an easy way to get a reference to your viewport from any controller: Ext.application({ launch: function(){ this.viewport = Ext.ComponentQuery.query('viewport')[0]; this.centerRegion = this.viewport.down('[region=center]'); } }); then, inside say, a controller, you can call this: this.application.viewport to get a reference to the viewport.
4 comments
Read more