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我想制作一个可以在网格上工作的自定义垂直滚动条组件(或插件)。哪个 Ext 组件最适合扩展?ExtJs 库中是否已有可以扩展的滚动条组件或插件?
我发现使用带有垂直方向的 Ext.slider 和一些按钮的面板是可以的解决方案。