Create a child component in a grid cell

This is a useful function that add an Ext component to a grid cell.

The function returns an HTML block and use a deferred function which add a Ext component to this div element.

/**  * create a Ext component in a grid  * @param  *          - className {String}: the class name of the component to create  *          - config (optional) {Object}: the configuration of the component to create  */ addGridComponent: function(options){       if (options.className){             // create a unique ID             var id = Ext.id();             // create a function which the call will be defer             Ext.defer(function(){                   var config = {renderTo: id};                   // add parameter options to render property                   if (options.config){                         Ext.apply(config, options.config);                   }                   Ext.create(options.className, config);             }, 25);             return (Ext.String.format(' ', id));       } }

source : http://www.rahulsingla.com/blog/2011/01/extjs-components-in-gridpanel-columns