用c＃实现动态点阵（x，y），数据来源不限。-with dynamic lattice (x, y), the open-source data.

老外写的VB读PNG的例子，封装好了PNG的类和Usercontrol控件，使用起来非常方便，超强-Foreigner wrote VB Reading PNG examples of good package PNG class and UserControl controls, very convenient to use, super! !

arx中如何使用wpf 这个例子演示了怎么使用自定义控件-how to use wpf by arx this sample is use custom control