C # using SharpZipLib create a compressed file, compressed folder and specify the path (path length compression resolve SharpZipLib display problems)

Used in the project SharpZipLib compressed when folder, if encountered deep directory, files in the same folder is compressed deeper problem. For example, a compressed file in the current directory program folder (D: \ cx \ code \ program \ bin \ debug \ files), then generate compressed package, need to open access to cx \ code \ program \ bin \ debug \ files You can see the contents. Through practice, disguised implemented a custom archive directory name and directory depth of functionality. Code and description below.

First, I want to compress folders and file paths distributed as follows:

A folder: D: \ cx \ code \ program \ bin \ debug \ files \ Upload1

Folder 2: D: \ cx \ code \ program \ bin \ debug \ files \ Upload2

Folders three: D: \ cx \ code \ program \ bin \ debug \ images \ 00001

Second, the need to generate compressed directory format is:

Archive file

       Upload1

             ...... file file1

       Upload2

            ...... file file1

       00001

            ...... file file1

Third, the main implementation code

To add a compressed folder and content through FastZip, add content to traverse not FastZip add a path through ZipFile and specify the path packet compression.

1, FastZip once add Upload1 and Upload2 directory (Talia files belong to the lower class level directory)

var fastZip = new FastZip
{
    Password = "ZipPassword",
    CreateEmptyDirectories = true
};
//注意路径最后不要带\ filepath为压缩包路径(如 d:\1.zip) 这里第三个参数为true代表遍历当前目录下的所有目录，第四个参数为过滤文件类型
fastZip.CreateZip(filePath, @"D:\cx\code\program\bin\debug\files", true, "json");

2, the path in the packet generated by the step of accessing a ZipFile compressed file, and updates the file to the specified compression

using (var zipFile = new ZipFile(filePath))
{
    zipFile.BeginUpdate();
    var picList = FilesHelper.FileSearchAsync(dirPicPath, "*.*", SearchOption.AllDirectories,
        x => x.Length > 10);
    foreach (var s in picList)
    {
//指定新添加的文件在压缩包内的目录路径
        zipFile.Add(s, $@"00001\{new FileInfo(s).Name}");
    }
    zipFile.CommitUpdate();
}

This creates a path specified compressed package archive file.

Attach filter specified folder designated file type code above folders can await retrieval

/// <summary>
/// 检索指定目录下的文件
/// </summary>
/// <param name="directoryPath">检索目录路径</param>
/// <param name="searchFilter">检索文件类型（如*.mp4)</param>
/// <param name="option">检索选项</param>
/// <param name="func">文件过滤器（比如只需要.mp4的文件)</param>
/// <returns></returns>
public static async Task<string[]> FileSearchAsync(string directoryPath, string searchFilter, SearchOption option, Func<string, bool> func)
{
    var files = Task.Run(() => Directory.GetFiles(directoryPath, searchFilter, option).Where(func).ToArray());
    var s = await files;
    return s;
}