extjs3 获取formPanel下的所有控件

_setReadOnly: function(_readOnly) {
        _readOnly = this.readOnly||_readOnly;
        var types = ['field'];
        for(var i=0; i<types.length; i++){
            fields = this.findByType(types[i]);
            Ext.each(fields,function(item,index,allItems){
                item.setDisabled(_readOnly);
            });
        }
        Ext.each(Test.util.findButtons(this),function(item){
            item.setDisabled(_readOnly);
        });
    }

 

//获取所有按钮
define(function(require, exports, module){
    Ext.ns("Test.util");
    Test.util.findButtons = function(c, s){
        var array = [];
        if( c.toolbars ){  
            Ext.each(c.toolbars, function(i){  
                var a = i.items.items;  
                Ext.each(a,function(i){
                    if( i.xtype=='button' || i.type=='button'){  
                        array.push(i);  
                    }  
                });  
            });  
        }
        
        if( c.items && c.items.items ){  
            var i = c.items.items;  
            Ext.each(i,function(i){  
                if(i.xtype=='button' || i.type=='button'){  
                    array.push(i); 
                } else if(s !== true) {
                    array = array.concat(IRMS.util.findButtons(i));
                }
            });
        }
        return array;
    };
    
    
    exports = Test.util;
});