EXTJS4.2 Best practices & Performance solutions

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 ( &

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

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