使用 DirectoryInfo[] 列出目录及其内容

Question

这需要一些时间来解释，但请耐心等待。

我根据特定路径上子目录的存在情况，自动在数据库中创建项目和潜在客户记录。目录结构分为三层。我将顶层的代码指向将子目录（区域）返回到 DirectoryInfo 对象数组中，如下所示：

DirectoryInfo[] classARegions = dir.GetDirectories("*", SearchOption.TopDirectoryOnly);

我想要使用的目录是该区域级别的子目录，因此我使用以下方法迭代 DirectoryInfo 数组：

foreach (DirectoryInfo region in classARegions)

然后迭代Region DirectoryInfo 以相同的方式对象子目录：

DirectoryInfo[] prospects = region.GetDirectories("*", SearchOption.TopDirectoryOnly);

到目前为止一切正常。我遇到的问题是在处理完第一个区域的子目录并返回 ForEach 循环后，我发现我的前景数组没有重新初始化为空。相反，除了当前迭代的子目录之外，它现在还包括先前迭代的所有子目录。

我的问题归结为我是否做错了，或者是否有办法清空prospects数组，以便它只填充来自本次迭代区域的子目录？

* 整个方法发布在下面。

 public string UpdateProspectInfo()
    {
        int countAdded = 0;
        int countExisting = 0;
        int countAddedOverall = 0;
        int countExistingOverall = 0;

        StringBuilder summary = new StringBuilder();
        StringBuilder existing = new StringBuilder();
        StringBuilder added = new StringBuilder();
        string prospectDir = ConfigurationManager.AppSettings["ProspectDir"].ToString();

        // get list of folders in Class A
        DirectoryInfo dir = new DirectoryInfo(prospectDir);
        DirectoryInfo[] classARegions = dir.GetDirectories("*", SearchOption.TopDirectoryOnly);

        summary.Append("Found " + classARegions.Length + " Class A Regions.\r\n");

        foreach (DirectoryInfo region in classARegions)
        {
            string regionName = (region.Name.Length > 50 ? region.Name.Substring(0, 50) : region.Name);

            DirectoryInfo[] prospects = region.GetDirectories("*", SearchOption.TopDirectoryOnly);                
            summary.Append("\r\n  Region: " + regionName + " contains " + prospects.Length + " prospect folders.\r\n");                

            foreach (DirectoryInfo prospect in prospects)
            {                    
                string projNum;
                string projName;

                int seperator = prospect.Name.IndexOf("-");
                // go to next prospect if name doesn't contain a - character
                if (seperator == -1)
                    continue;

                projNum = prospect.Name.Substring(0, seperator);
                projName = prospect.Name.Substring(seperator + 1);

                ProjectCollection temp = new Select().From<Project>()
                .Where("ProjectName").IsEqualTo(projName)
                .ExecuteAsCollection<ProjectCollection>();

                if (temp.Count < 1)
                {
                    Project tempProj = new Project();
                    tempProj.ProjectNumber = projNum;
                    tempProj.ProjectName = projName;
                    tempProj.PMAssigned = "Joe Smith";
                    tempProj.PMUserID = 108;
                    tempProj.ProjectActivity = "Active";
                    tempProj.ProjectLead = "Lead";
                    //tempProj.Location = projNum.Substring(0,50);
                    tempProj.DirectoryPath = prospect.FullName;

                    tempProj.Save();
                    countAdded++;

                    added.Append("      " + projName + "\r\n");
                }
                else
                {
                    ((Project)temp[0]).DirectoryPath = prospect.FullName;
                    ((Project)temp[0]).Save();
                    countExisting++;
                }                    
            }

            // add summary for each region
            summary.Append("    Added " + countAdded + " prospects.\r\n");
            summary.Append(added.ToString());
            summary.Append("    Processed " + countExisting + " prospects that already existed in the database.\r\n");

            // update counts and continue to next region
            countAddedOverall += countAdded;
            countExistingOverall += countExisting;
            countAdded = 0;
            countExisting = 0;
        }           

        return summary.ToString();
    }

Answer 1

感谢@BrokenGlass 的评论，通过从另一个方向挖掘来解决这个问题。

解决方案：如果名称缺少“-”字符，我会跳过文件夹。在我的摘要电子邮件中，我没有考虑跳过的文件夹。返回的文件夹总数高于 countAdded 和 countExisting 的总和。再次浏览代码，我看到了这一行：

if (seperator == -1) continue;

每当我点击不带“-”字符的文件名时，我就会离开循环。