在Ext.ux.form.MultiSelect的onRender方法中新增autoScroll:true。解決滾動條異常問題。 

1. onRender: function(ct, position){  
2.         Ext.ux.form.MultiSelect.superclass.onRender.call(this, ct, position);  
3.         var fs = this.fs = new Ext.form.FieldSet({  
4.             renderTo: this.el,  
5.             title: this.legend,  
6.             autoScroll:true,  
7.             height: this.height,  
8.             width: this.width,  
9.             style: "padding:0;",  
10.             tbar: this.tbar  
11.         });