image2string

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Diagnostics;

namespace WindowsFormsApplication3
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        public Bitmap GetImageFromBase64(string base64string)
        {
            byte[] b = Convert.FromBase64String(base64string);
            MemoryStream ms = new MemoryStream(b);
            Bitmap bitmap = new Bitmap(ms);
            return bitmap;
        }
        public string GetBase64FromImage(string imagefile)
        {
            string strbaser64 = "";
            try
            {
                Bitmap bmp = new Bitmap(imagefile);
                MemoryStream ms = new MemoryStream();
                bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                byte[] arr = new byte[ms.Length];
                ms.Position = 0;
                ms.Read(arr, 0, (int)ms.Length);
                ms.Close();
                strbaser64 = Convert.ToBase64String(arr);
            }
            catch (Exception)
            {
                throw new Exception("Something wrong during convert!");
            }
            return strbaser64;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string fileaddress = "C:\\Users\\cici\\Desktop\\新建文件夹\\20090112125352837.jpg";
            string str =GetBase64FromImage(fileaddress);
            label1.Width = 10;
            label1.Text = str;
            Debug.WriteLine("string");
            Debug.WriteLine(label1.Text);
            Bitmap bm = GetImageFromBase64(label1.Text);
            this.pictureBox1.Image = bm;
        }
    }
}

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