启用dataGridView的双缓冲即可解决，方法如下：
Type type = dataGridView.GetType();
PropertyInfo pi = type.GetProperty("DoubleBuffered",
BindingFlags.Instance | BindingFlags.NonPublic);
pi.SetValue(dataGridView, true, null);
标签：C#,dataGridView,BindingFlags,DataGridView,pi,type,闪烁
From： https://www.cnblogs.com/han-zhonggong/p/16699359.html