匹配文件的名稱和大小

Question

我在集成兩段代碼時遇到了一些麻煩。第一個檢查文件的大小，下一個循環通過SQL數據庫並查找文件的匹配名稱。我基本上想檢查它是否是一個新文件，或者自從我上次記錄它的一些數據後該文件已經改變。

此獲取每個文件的大小在目錄

// Make a reference to a directory. 
     DirectoryInfo di = new DirectoryInfo("C:\\Users"); 
     // Get a reference to each file in that directory. 
     FileInfo[] fiArr = di.GetFiles(); 
     // Display the names and sizes of the files. 
     MessageBox.Show("The directory {0} contains the following files:", di.Name); 
     foreach (FileInfo f in fiArr) 
      MessageBox.Show("The size of" + f.Name + " is " + f.Length + " bytes."); 

這段代碼循環，直到它找到一個馬赫或直到所有條目一直看着低谷。

try 
      { 
       // LINQ query for all files containing the word '.txt'. 
       var files = from file in 
           Directory.EnumerateFiles("C:\\Users") 
          where file.ToLower().Contains(".txt") 
          select file; 

      foreach (var file in files) 
      { 
       //Get path to HH file 
       filename = System.IO.Path.GetFileName(file); 

       tempString = ""; 

       //Keep looking trough database utill database empty or HH found 
       while (inc != numberOfSessions && (filename != tempString)) 
       { 

        sessionRow = sessions.Tables["Sessions"].Rows[inc]; 
        tempString = sessionRow.ItemArray.GetValue(1).ToString(); 

        inc++; 
       } 

可以說ItemAttay.GetValue（2）返回保存的文件大小。我怎樣才能最有效地保持while循環會如果

INC！= numberOfSessions & &（文件名！= tempString）& &（sessionRow.ItemArray.GetValue（2）== f.length）

感謝看看！

Answer 1

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.IO; 
using System.Data; 



    class Program 
    { 
     static void Main(string[] args) 
     { 
      var files1 = new List<string>(Directory.GetFiles(args[0], 
       "*.txt", 
       SearchOption.AllDirectories)); 


      List<FileData> ListFiles = new List<FileData>(); 

      for (int i = 0; i < files1.Count; i++) 
      { 


      FileInfo file = new FileInfo(files1[i]); 
      FileData _tmpfile = new FileData(file.Name.ToString(), file.Length, 
       File.GetLastWriteTime(files1[1]).ToString("yyyy-MM-dd H:mm:ss"), 
       File.GetLastAccessTime(files1[1]).ToString("yyyy-MM-dd H:mm:ss")); 
      ListFiles.Add(_tmpfile); 
      } 

      DataSet sessions = new DataSet(); 
      DataTable dt = sessions.Tables["Sessions"]; 
      for (int i = 0; i < ListFiles.Count; i++) 
      { 
       //compares every file in folder to database 
       FileData _tmp = ListFiles[i]; 
       for (int j = 0; j < dt.Rows.Count; j++) 
       { 
        if (_tmp.GSFileName == dt.Rows[i][0].ToString()) 
        { 
         //put some code here 
         break; 
        } 

        if (_tmp.GSSize == long.Parse(dt.Rows[i][1].ToString())) 
        { 
         //put some code here 
         break; 
        } 

       } 


      } 



     } 
    } 
    public class FileData 
    { 
     string FileName = ""; 

     public string GSFileName 
     { 
      get { return FileName; } 
      set { FileName = value; } 
     } 
     long Size = 0; 

     public long GSSize 
     { 
      get { return Size; } 
      set { Size = value; } 
     } 
     string DateOfModification = ""; 

     public string GSDateOfModification 
     { 
      get { return DateOfModification; } 
      set { DateOfModification = value; } 
     } 
     string DateOfLastAccess = ""; 

     public string GSDateOfLastAccess 
     { 
      get { return DateOfLastAccess; } 
      set { DateOfLastAccess = value; } 
     } 

     public FileData(string fn, long si, string dateofmod, string dateofacc) 
     { 
      FileName = fn; 
      Size = si; 
      DateOfModification = dateofmod; 
      DateOfLastAccess = dateofacc; 

     } 

    }