基本代码逻辑OK

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace PICTUREVIEW
{
    public partial class Form1 : Form
    {
        GalleryDataSet gallery;
        GalleryDataSetTableAdapters.picturesTableAdapter gallery_pictures_adpater;
        GalleryDataSetTableAdapters.commentsTableAdapter gallery_comments_adpater;

        Point panel1_location;
        BackgroundWorker doser;


        public Form1()
        {
            InitializeComponent();

            gallery = new GalleryDataSet();

            gallery_pictures_adpater = new GalleryDataSetTableAdapters.picturesTableAdapter();
            gallery_comments_adpater = new GalleryDataSetTableAdapters.commentsTableAdapter();


            panel1_location = new Point(0, 0);



            //flush_gallery_view();

            doser = new BackgroundWorker();

            doser.RunWorkerCompleted += new RunWorkerCompletedEventHandler(doser_RunWorkerCompleted);
            doser.RunWorkerAsync();
            

            picture_view.DoubleClick += new EventHandler(picture_view_DoubleClick);
            panel1.ControlAdded += new ControlEventHandler(panel1_ControlAdded);

            tabControl1.SelectedIndexChanged += new EventHandler(tabControl1_SelectedIndexChanged);

            panel1.MouseDoubleClick+=new MouseEventHandler(menu_item_file_open_Click);

        }

        void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
        {
            menu_tools_item_next.Enabled = menu_tools_item_pre.Enabled = (sender as TabControl).SelectedTab == tab_picture_view;
        }



        void doser_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            flush_gallery_view();
        }

        

        
        void panel1_ControlAdded(object sender, ControlEventArgs e)
        {
            e.Control.Location = panel1_location;
            panel1_location.X += 120;
            if (panel1_location.X > panel1.Width - 120)
            {
                panel1_location.X = 0;
                panel1_location.Y += 80;
            }

        }

        void picture_view_DoubleClick(object sender, EventArgs e)
        {
            string _comment;
            if ((_comment = Microsoft.VisualBasic.Interaction.InputBox("输入要标注在此的批注", "输入批注")) != String.Empty)
            {
                gallery_comments_adpater.Insert(((sender as PictureBox).Tag as GalleryDataSet.picturesRow).pid, _comment, (e as MouseEventArgs).X, (e as MouseEventArgs).Y);
            }

            set_current_picture((sender as PictureBox).Tag as GalleryDataSet.picturesRow);
            
        }

        LinkedList<GalleryDataSet.picturesRow> gallery_for_find;
        LinkedListNode<GalleryDataSet.picturesRow> picture_view_current_node;

        void flush_gallery_view()
        {
            gallery_for_find = new LinkedList<GalleryDataSet.picturesRow>();

            gallery_pictures_adpater.Fill(gallery.pictures);

            panel1.Controls.Clear();
            panel1_location.X = 0; panel1_location.Y = 0;
            foreach (GalleryDataSet.picturesRow x in gallery.pictures.Rows)
            {
                try
                {
                    PictureBox _pictures_box = new PictureBox();
                    _pictures_box.Size = new Size(120, 80);
                    _pictures_box.SizeMode = PictureBoxSizeMode.StretchImage;
                    _pictures_box.Cursor = Cursors.Hand;
                    _pictures_box.Click += new EventHandler(_pictures_box_Click);
                    _pictures_box.Image = new Bitmap(x.path);
                    _pictures_box.Tag = x;

                    panel1.Controls.Add(_pictures_box);
                    gallery_for_find.AddLast(x);
                }
                catch
                {
                    //什么也不干
                }
            }
        }



        void set_current_picture(GalleryDataSet.picturesRow p)
        {
            tabControl1.SelectedTab = tab_picture_view;
            try
            {
                picture_view.Image = new Bitmap(p.path);
            }
            catch
            {
            }

            menu_tools_item_pre.Enabled = p != gallery_for_find.First.Value;
            menu_tools_item_next.Enabled = p != gallery_for_find.Last.Value;

            picture_view.Tag = p;



            gallery_comments_adpater.Fill(gallery.comments);
            picture_view.Controls.Clear();
            foreach (GalleryDataSet.commentsRow x in gallery.comments.Select("pid=" + p.pid.ToString()))
            {
                Label _label = new Label();
                _label.Text = x.text;
                _label.Location = new Point(x.x, x.y);
                _label.AutoSize = true;
                _label.Padding = new Padding(6);
                _label.BackColor = Color.Orange;
                picture_view.Controls.Add(_label);
            }
        }

        void enroll_picture(string p)
        {
            if (gallery.pictures.Select("path='" + p + "'").Length==0)
            {
                gallery_pictures_adpater.Insert(p, 0);
            }
        }


        void _pictures_box_Click(object sender, EventArgs e)
        {
            set_current_picture((sender as PictureBox).Tag as GalleryDataSet.picturesRow);
        }

        private void menu_item_file_open_Click(object sender, EventArgs e)
        {
            OpenFileDialog _selector = new OpenFileDialog();
            _selector.Title = "选择要打开的图片";
            _selector.Filter = "图像文件|*.jpg";
            if (_selector.ShowDialog()==DialogResult.OK)
            {
                enroll_picture(_selector.FileName);
            }
            flush_gallery_view();
        }

        private void menu_item_file_enroll_Click(object sender, EventArgs e)
        {
            OpenFileDialog _selector = new OpenFileDialog();
            _selector.Title = "选择要打开的图片（可以多选）";
            _selector.Filter = "图像文件|*.jpg";
            _selector.Multiselect = true;
            if (_selector.ShowDialog() == DialogResult.OK)
            {
                foreach (string x in _selector.FileNames)
                {
                    enroll_picture(x);
                }
            }
            flush_gallery_view();
        }

        private void menu_file_item_exit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void menu_file_clear_Click(object sender, EventArgs e)
        {
            int i = 0, c = 0;
            foreach (GalleryDataSet.picturesRow xi in gallery.pictures)
            {
                if (!System.IO.File.Exists(xi.path))
                {
                    i++;
                    foreach (GalleryDataSet.commentsRow xj in gallery.comments.Select("pid="+xi.pid))
                    {
                        c++;
                        gallery_comments_adpater.Delete(xj.cid, xj.pid, xj.text, xj.x, xj.y);
                    }
                    gallery_pictures_adpater.Delete(xi.pid, xi.path, xi.hash);
                }
            }
            MessageBox.Show("共清除" + i.ToString() + "条不存在的记录，以及他们的批注" + c.ToString() + "条。");
        }

        private void menu_tools_item_next_Click(object sender, EventArgs e)
        {
            set_current_picture(gallery_for_find.Find(picture_view.Tag as GalleryDataSet.picturesRow).Next.Value);
        }

        private void menu_tools_item_pre_Click(object sender, EventArgs e)
        {
            set_current_picture(gallery_for_find.Find(picture_view.Tag as GalleryDataSet.picturesRow).Previous.Value);
        }

        private void 关于AToolStripMenuItem_Click(object sender, EventArgs e)
        {
            MessageBox.Show("[email protected]");
        }

        private void menu_file_item_scan_Click(object sender, EventArgs e)
        {
            MessageBox.Show("尚未实现");
        }



    }
}