As shown in Figure 3, Ext JS also provides tree controls, which provide users with a familiar file system-like view.
如图3所示，ExtJS还提供树控件，这种控件提供用户熟悉的与文件系统相似的视图。
The fix is simple: client2 refreshes its view of the object graph in memory, using the refresh method on the extension object (which is returned by ext ).
改进方法很简单：client2使用extension对象上的refresh方法刷新它在内存中的对象图视图，extension对象由ext返回。
The fix is simple: client2 refreshes its view of the object graph in memory, using the refresh method on the extension object (which is returned by ext ).
改进方法很简单：client2使用extension对象上的refresh方法刷新它在内存中的对象图视图，extension对象由ext返回。
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