刪除行開始在CSV文件在SSIS Controlflow腳本任務

Question

我有一個.csv文件看起來像這樣：

#Example Company       
#(999) 999-9999      
#http://yourwebsite.com        
#Report Date Range: Dec 26, 2013 - Dec 26, 2013      
#Exported: Dec 26, 2013        
#Twitter : Profile Summary        
#Screen Name,Name,Description,Location,Followers,Following,Listed 

SctaSa,statisticalgraph,statistical Screen- The official account for your 
organization,Saudi Arabia,6775,8,75 

所以，我需要從.csv文件採取具體的數據具有可讀性到SSIS轉型，從"Screen Name"柱和remove the garbage data與＃做起，要像她那樣

Screen Name,Name,Description,Location,Followers,Following,Listed,Exported,Report Date Range 
SctaSa,statisticalgraph,statistical Screen- The official account for your organization,Saudi Arabia,6775,8,75,26-Dec-13,26-Dec-13 

我試圖用這個C＃腳本，但它並沒有穿文件（我不是在C＃中的專家，所以我不不知道是什麼問題是）我試圖用下面的腳本刪除任何以# but the file dose not transfare to the out put path開頭的行;你能給我任何建議嗎？！

#region Namespaces 
using System; 
using System.Data; 
using Microsoft.SqlServer.Dts.Runtime; 
using System.Windows.Forms; 
using System.IO; 
using System.Collections.Generic; 
#endregion 

namespace ST_a7b941606e0b40aa920bfe13fc81dc81 
{ 
    /// <summary> 
    /// ScriptMain is the entry point class of the script. Do not change the name, attributes, 
    /// or parent of this class. 
    /// </summary> 
    [Microsoft.SqlServer.Dts.Tasks.ScriptTask.SSISScriptTaskEntryPointAttribute] 
    public partial class ScriptMain : Microsoft.SqlServer.Dts.Tasks.ScriptTask.VSTARTScriptObjectModelBase 
    { 
     protected void Page_Load(object sender, EventArgs e) 
     { 
      var lines = new List<string>(); 
      string line; 
      using (var file = new System.IO.StreamReader("D:\\try.csv")) 
      { 
       while ((line = file.ReadLine()) != null) 
       { 
        if (line.Length != 0) 
        { 
         if (!line.StartsWith("#") ) 
         { 
          lines.Add(line); 
         } 
        } 
       } 
      } 
      File.WriteAllLines("D:\\SCTA_ETL\\try.csv", lines); 
     } 

     /// <summary> 
     /// This method is called when this script task executes in the control flow. 
     /// Before returning from this method, set the value of Dts.TaskResult to indicate success or failure. 
     /// To open Help, press F1. 
     /// </summary> 
     public void Main() 
     { 
      // TODO: Add your code here 

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

     #region ScriptResults declaration 
     /// <summary> 
     /// This enum provides a convenient shorthand within the scope of this class for setting the 
     /// result of the script. 
     /// 
     /// This code was generated automatically. 
     /// </summary> 
     enum ScriptResults 
     { 
      Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success, 
      Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure 
     }; 
     #endregion 

    } 
} 

Answer 1

你可能想改變在中間你的邏輯：

var lines = new List<string>(); 
string outputPath = // your output path here 
using (var file = new System.IO.StreamReader("c:\\mycsv.csv")) 
{ 
    string line; 
    while ((line = file.ReadLine()) != null) 
    { 
    if (!line.StartsWith("#")) 
    { 
     lines.Add(line); 
    } 
    } 
} 
File.WriteAllLines(outputPath, lines); 

您已經移除了「＃」裏面的任何地方都行。

相反，只添加不以「＃」開頭的行。

此外，請務必在完成後關閉並處理您的StreamReader，或者將整個事件放入using部分。

Answer 2

另一種方式：

File.WriteAllLines(outputPath, File.ReadAllLines("c:\\mycsv.csv").Where(x => !x.StartsWith("#")).ToArray());