使用SSIS脚本枚举文件夹中的文件任务

Question

有人可以展示如何使用SSIS中的脚本任务枚举给定文件夹中的文件？

Answer 1

配置两个变量：只读字符串User::download_path和读写对象User::files_to_process接收文件列表。

public void Main() 
{ 
    bool fireAgain = true; 

    var filesToProcess = new System.Collections.ArrayList(); 
    var filesInDirectory = new System.Collections.ArrayList(); 

    var download_path = (String)Dts.Variables["User::download_path"].Value; 

    // Find for example all csv files in the directory which are having size > 0 
    var downloadedFiles = new DirectoryInfo(download_path).EnumerateFiles("*.csv",SearchOption.TopDirectoryOnly); 
    foreach (var f in downloadedFiles) 
    { 
     if (f.Length > 0) 
      filesInDirectory.Add(f.FullName); 
    } 

    Dts.Events.FireInformation(3, "Getting files in directory", downloadedFiles.Count().ToString() + " found.", "", 0, ref fireAgain); 

    // Report the file names into the SSIS Log: 
    foreach (var f in filesToProcess) 
    { 
     Dts.Events.FireInformation(3, f.ToString(), "Ready for processing", "", 0, ref fireAgain); 
    } 

    // Return them into the READWRITE object variable 
    Dts.Variables["User::files_to_process"].Value = filesInDirectory; 

    Dts.TaskResult = (int)ScriptResults.Success; 
}