using System;
using System.Reflection;
using System.Windows.Forms;

public class FastDataGridView : DataGridView
{
    public FastDataGridView()
    {
        // 通过反射开启 DataGridView 的 DoubleBuffered 属性
        typeof(DataGridView)
            .GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic)
            .SetValue(this, true, null);

        this.SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
        this.SetStyle(ControlStyles.AllPaintingInWmPaint, true); 
        this.SetStyle(ControlStyles.UserPaint, true);
    }
}