界面Load的时候添加对tableLayoutPanel的处理即可，还可设置窗体的DoubleBuffered属性为True
tableLayoutPanel1.GetType().GetProperty("DoubleBuffered", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic).SetValue(tableLayoutPanel1, true, null);
原文：http://www.cnblogs.com/smilepeter/p/6230294.html