C＃：如何將文件夾中的所有文本文件以Windows格式顯示到列表框中

Question

因此，我正在通過創建一個樣本隊列系統來存儲本地文本文件中的數據來練習我的技能。我想知道是否可以在列表框（隊列框）上顯示票證列表。

1 textfile = 1票。

這是我的示例代碼：

問題： 1.具有擴展名一起顯示的票號（1005.txt）

它增加了列表框中文件夾中的所有文本文件。我只想將文本文件顯示爲列表項，所以當我單擊刷新時，它必須顯示相同數量的項目並且不添加重複項。

任何人都可以幫我嗎？謝謝！

Answer 1

試試這個代碼，

ticketBox.Items.Clear(); 
DirectoryInfo dinfo = new DirectoryInfo(@"C:\SampleDirectory"); 
FileInfo[] smFiles = dinfo.GetFiles("*.txt"); 
foreach (FileInfo fi in smFiles) 
{ 
    ticketBox.Items.Add(Path.GetFileNameWithoutExtension(fi.Name)); 
} 

Answer 2

private void refreshMainQueue_Click(object sender, EventArgs e) 
     { 
      /* Comment: I am using lower camelCase for naming convention. */ 

      /* Comment: Solve your Problem 2: Always clear the list box before populating records. */ 
      ticketBox.Items.Clear(); 

      DirectoryInfo dInfo = new DirectoryInfo(@"C:\SampleDirectory"); 
      FileInfo[] files = dInfo.GetFiles("*.txt"); 
      /* Comment: Only perform the below logic if there are Files within the directory. */ 
      if (files.Count() > 0) 
      { 
       /* Comment: Create an array that has the exact size of the number of files 
       * in the directory to store the fileNames. */ 
       string[] fileNames = new string[files.Count()]; 

       for (int i = 0; i < files.Count(); i++) 
       { 
        /* Comment: Solve your Problem 1: 
        * Refer here to remove extension: https://stackoverflow.com/questions/4804990/c-sharp-getting-file-names-without-extensions */ 
        fileNames[i] = Path.GetFileNameWithoutExtension(files[i].Name); 
       } 

       ticketBox.Items.AddRange(fileNames); 
      } 
     }