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c# - How to detect : scrolling - up or down?

in Technique[技术] by (71.8m points)

System.Windows.Forms.Form has only one scroll event-Scroll, but it is necessary to recognize scrolling up and scrolling down.Could you tell me,how to do this?

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by (71.8m points)

Use the passed System.Windows.Forms.ScrollEventArgs arguments' OldValue and NewValue properties to detect the scroll direction.


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