public partial class PicListEx : UserControl
    {
        private Size size = new Size(100, 100);

        private Thread LoadPictureThread = null;

        public PicListEx()
        {
            InitializeComponent();
            lViewPic.View = View.LargeIcon;
        }

        /// <summary>
        /// 加载图片
        /// </summary>
        /// <param name="filePaths">包含图片路径的数组</param>
        public void loadPicFile(List<string> filePaths)
        {
            if (LoadPictureThread == null || !LoadPictureThread.IsAlive)
            {
                LoadPictureThread = new Thread(new ParameterizedThreadStart(LoadPictureFunc));
                LoadPictureThread.IsBackground = true;
                LoadPictureThread.Start(filePaths);
            }
            else
            {
                return;
            }
        }

        private void LoadPictureFunc(object obj)
        {
            List<string> filePaths = null;
            if (obj is List<string>)
            {
                filePaths = obj as List<string>;
            }
            else
            {
                return;
            }
            try
            {
                Invoke(new MethodInvoker(new Action(delegate()
                {
                    lViewPic.Items.Clear();
                    lViewPic.BeginUpdate();
                })));

                ImageList Ilist = new ImageList();//与ListView关联的大图标列表
                Ilist.ImageSize = size;//设置大小
                Invoke(new MethodInvoker(new Action(delegate()
                {
                    lViewPic.LargeImageList = Ilist;  //关联
                })));

                foreach (string filePath in filePaths)
                {
                    if (File.Exists(filePath))
                    {
                        string fileName = Path.GetFileNameWithoutExtension(filePath);
                        Image img = ResizeImage(filePath);
                        Invoke(new MethodInvoker(new Action(delegate()
                        {
                            Ilist.Images.Add(filePath, img);
                        })));

                        ListViewItem lvitem = new ListViewItem(fileName);
                        lvitem.Tag = filePath;
                        lvitem.ImageKey = filePath;
                        Invoke(new MethodInvoker(new Action(delegate()
                        {
                            lViewPic.Items.Add(lvitem);
                        })));
                        img.Dispose();
                    }
                }

                Invoke(new MethodInvoker(new Action(delegate()
                {
                    lViewPic.EndUpdate();
                    lViewPic.Refresh();
                })));
            }
            catch (Exception ex)
            {
                MessageBox.Show(this, ex.Message);
            }
            finally
            {
                Invoke(new MethodInvoker(new Action(delegate()
                    {
                    })));
            }
        } 

        private void lViewPic_Click(object sender, EventArgs e)
        {
            MessageBox.Show("自定义控件内_单击事件.");//**能够响应
        }

        private void lViewPic_MouseClick(object sender, MouseEventArgs e)
        {
            MessageBox.Show("自定义控件内_鼠标点击事件.");//**能够响应
        }

        protected override void OnClick(EventArgs e)
        {
            MessageBox.Show("重载的自定义控件单击事件.");//**无法响应
            base.OnClick(e);
        }

        protected override void OnMouseEnter(EventArgs e)
        {
            MessageBox.Show("重载的自定义控件鼠标进入控件事件.");//**无法响应
            base.OnMouseEnter(e);
        }
    }

    public partial class FormMain : Form
    {
        public FormMain()
        {
            InitializeComponent();
            picListExLeft.Click += picListExLeft_Click;
        }

        string filePath = "";

        private void tsBtn_OpenForld_Click(object sender, EventArgs e)
        {
            string folderPath = "";
            FolderBrowserDialog folderDlg = new FolderBrowserDialog();
            if (folderDlg.ShowDialog() == DialogResult.OK)
            {
                folderPath = folderDlg.SelectedPath;
            }
            List<string> listfile = new List<string>();
            if (folderPath != "" && Directory.Exists(folderPath))
            {
                DirectoryInfo dirInfo = new DirectoryInfo(folderPath);

                foreach (FileInfo fileinfo in dirInfo.GetFiles())
                {
                    if (fileinfo.Extension.ToUpper() == ".JPG")
                        listfile.Add(fileinfo.FullName);
                }
            }
            folderDlg.Dispose();
            folderDlg = null;
            if (listfile.Count > 0)
            {
                picListExLeft.loadPicFile(listfile);
            }

        }

        private void tsBtn_OpenPic_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFd = new OpenFileDialog();
            if (openFd.ShowDialog() == DialogResult.OK)
            {
                filePath = openFd.FileName;
            }
            openFd.Dispose();
            openFd = null;
            if (filePath != "")
            {
                List<string> listTem = new List<string>();
                listTem.Add(filePath);
                picListExLeft.loadPicFile(listTem);
            }
        }

        private void picListExLeft_Click(object sender, EventArgs e)
        {
            ListViewItem item = picListExLeft.GetListViewSelectedItem;
            if (item != null && (item.Tag as string).Trim() != "")
            {
                MessageBox.Show((item.Tag as string).Trim());
            }
        }

        private void picListExLeft_MouseClick(object sender, MouseEventArgs e)
        {
            MessageBox.Show("鼠标单击");////**无法响应
        }

        private void picListExLeft_Load(object sender, EventArgs e)
        {
            MessageBox.Show("LOAD");
        }

        private void picListExLeft_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            MessageBox.Show("双击");//**无法响应
        }

        private void picListExLeft_MouseEnter(object sender, EventArgs e)
        {
            MessageBox.Show("鼠标进入");//**无法响应
        }
    }