只需将瞄准镜拖拽到运行的窗体上，你就能够看到那些控件具有的属性和事件。

By merely dragging the crosshair onto a running form, you can see all the properties and events for the given control.

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通过属性和事件模型实现的完整的地图控件。

Fully implemented map control with property and event model.

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在一个表单上可以包含多个基本控件，全面掌握这些控件的属性、事件和方法程序是进行系统开发的基础。

We can include many basic control in a frame. completely grasping property, event and method of these controls is the fundament of working system exploring.

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