C# winform压缩文件夹带进度条

注意：用了开源的CL.IO.Zip库

pbYSJD是进度条的控件名

btnImport是按钮控件名，当压缩结束之后，使按钮处于激活状态，否则无法点击按钮。

/// <summary>
        /// 压缩文件夹并复制到制定目录
        /// </summary>
        /// <param name="strPath">待压缩的文件夹路径</param>
        /// <param name="strZipPath">需要复制到的目录路径（该路径需要带压缩文件名）</param>
        private void ImportZip(string strPath,string strZipPath)
        {
            ZipHandler handler = ZipHandler.GetInstance();
            TaskFactory fastory = new TaskFactory();
            Task[] tasks = new Task[]
            {
                fastory.StartNew(() =>
                {
                    handler.PackDirectory(strPath, strZipPath, (num) =>
                {
                    pbYSJD.Value = Convert.ToInt32(num);
                });
                })
            };
            fastory.ContinueWhenAll(tasks, TasksEnded);

        }
        private void TasksEnded(Task[] tasks)
        {
            MessageBox.Show("压缩完成", "提示");
            btnImport.Enabled = true;
        }