关于SuspendLayout方法

据说是可以挂起，然后ResumeLayout（）结束挂起。using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        private string path = "../../QQ截图未命名.png";
        public Form1()
        {
            InitializeComponent();
        }        private void Form1_Load(object sender, EventArgs e)
        {
            TJ();
        }
        private void TJ()
        {
            NewMethod();
            //this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 40F));
        }        private void NewMethod()
        {
            this.tableLayoutPanel1.SuspendLayout();
            this.tableLayoutPanel1.Controls.Clear();
            this.tableLayoutPanel1.RowCount = 0;
            string[] strs = new string[] { "1", "2", "1", "2", "../../QQ截图未命名.png", "2", "1", "2" };
            string[] strs1 = new string[] { "1", "2", "1", "2", "1", "../../QQ截图未命名.png", "1", "2" };
            string[] strs2 = new string[] { "1", "2", "../../QQ截图未命名.png", "2", "1", "2", "1", "2" };
            string[] strs3 = new string[] { "1", "2", "1", "2", "../../QQ截图未命名.png", "2", "1", "2" };
            this.tableLayoutPanel1.ColumnCount = 1;
            List<string[]> list = new List<string[]>();
            list.Add(strs);
            list.Add(strs1);
            list.Add(strs2);
            list.Add(strs3);
            foreach (string[] strss in list)
            {
                this.tableLayoutPanel1.RowCount += 1;
                for (int i = 0; i < strs.Length; i++)
                {
                    if (this.tableLayoutPanel1.ColumnCount < strs.Length)
                    {
                        this.tableLayoutPanel1.ColumnCount += 1;
                        //this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 20F));
                    }
                    PictureBox p = new PictureBox();
                    if (strss[i] == path)
                    {
                        p.Image = Image.FromFile(path);
                    }
                    this.tableLayoutPanel1.Controls.Add(p);
                }
            }
            this.tableLayoutPanel1.ResumeLayout();   
        }        private void button1_Click(object sender, EventArgs e)
        {
            this.tableLayoutPanel1.SuspendLayout();
            this.tableLayoutPanel1.Controls.Clear();
            
            this.tableLayoutPanel1.RowCount = 0;
            string[] strs = new string[] { "1", "2", "1", "2", "../../QQ截图未命名.png", "2", "1", "2" };
            string[] strs1 = new string[] { "1", "2", "1", "2", "1", "../../QQ截图未命名.png", "1", "2" };
            string[] strs2 = new string[] { "1", "2", "../../QQ截图未命名.png", "2", "1", "2", "1", "2" };
            string[] strs3 = new string[] { "1", "2", "1", "2", "../../QQ截图未命名.png", "2", "1", "2" };            this.tableLayoutPanel1.ColumnCount = 1;
            List<string[]> list = new List<string[]>();
            list.Add(strs1);
            list.Add(strs2);
            list.Add(strs2);
            list.Add(strs3);
            foreach (string[] strss in list)
            {
                this.tableLayoutPanel1.RowCount += 1;
                for (int i = 0; i < strs.Length; i++)
                {
                    if (this.tableLayoutPanel1.ColumnCount < strs.Length)
                    {
                        this.tableLayoutPanel1.ColumnCount += 1;
                    }
                    
                    if (strss[i] == path)
                    {
                        PictureBox p = new PictureBox();
                        p.Image = Image.FromFile(path);
                        this.tableLayoutPanel1.Controls.Add(p);
                        this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 20F));
            
                    }
                }
            }
            this.ResumeLayout();
        }        private void button2_Click(object sender, EventArgs e)
        {
            NewMethod();
        }       
    }
}加了不加这两个方法可以出来4个图，加了之后，就出来了一个图。不知道为什么。还有呀，其实加这个方法为了解决NEW了这么多控件，会出现闪烁的问题，有没有别的方法呢？