油漆事件有问题 [英] there's a problem in paint event

问题描述

我对我的项目有一个用户控件.但是似乎在创建行时，paint事件处理程序存在一些问题.创建一行后，向下滚动用户控件.然后创建几行.我该怎么办?

I have a user control on my project. But it seems that the paint event handler has some problems when it comes to creating a line. After creating a line, I scroll down the user control. Then it create several lines. What should I do?

推荐答案

在paint事件的第一行中添加此代码

Add this code in the first line in paint event

e.Graphics.Clear(Color.White);

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