使用这个类

public static class ExtensionMethods
{
   public static void DoubleBuffered(this DataGridView dgv, bool setting)
   {
      Type dgvType = dgv.GetType();
      PropertyInfo pi = dgvType.GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic);
      pi.SetValue(dgv, setting, null);
   }
}

并输入此代码.

this.dataGridView1.DoubleBuffered(true);

享受.