在C＃應用程序中添加暫停以執行

Question

我有一個應用程序從文件中讀取並在彈出窗口中顯示文件的內容。該文本文件以這種方式包含數據;

d：\\ ABC \\ xyz.txt將該| xyz.txt將該

d：\\ \\ MP3 boom.mp3 | boom.mp3

現在，應用程序讀取一行從文本文件中以另一種形式顯示行內容，並且這些彈出窗口一次顯示，我想要做的是，如果有多行，則在10秒暫停後顯示每個彈出窗口，但Thread.Sleep（10000 ）不適合我。讀取的代碼如下所示。

void FileDetected() 
    { 
     int counter = 0,c=1; 
     string line; 
     System.IO.StreamReader file = new System.IO.StreamReader(FILEPATH); 
     while ((line = file.ReadLine()) != null) 
     { 
      string[] words = line.Split('|'); 
      c = 1; 
      path = ""; fileName = ""; 
      foreach (string word in words) 
      { 
       if (c == 1) 
        path = word.Replace(@"\\", @"\"); 
       if (c==2) 
        fileName = word; 
       c++; 
      } 
      counter++; 
      if (path != "" && fileName != "") 
      { 
       Console.WriteLine("Path :" + path); 
       Console.WriteLine("FileName: " + fileName); 
       popup dlg = new popup(path, fileName); 
       dlg.Show(); 
       //Thread.Sleep(10000); 
      } 
     } 

請親引導我。

Answer 1

如果您使用.NET 4.5（或4.0與Visual Studio 2012或更新版本，通過NuGet下載Microsoft.Bcl.Async），使用async/await很容易。

//You will likely need to modify the calling code to use async/await too. 
async Task FileDetected() 
{ 
    int counter = 0,c=1; 
    string line; 
    System.IO.StreamReader file = new System.IO.StreamReader(FILEPATH); 
    while ((line = file.ReadLine()) != null) 
    { 
     string[] words = line.Split('|'); 
     c = 1; 
     path = ""; fileName = ""; 
     foreach (string word in words) 
     { 
      if (c == 1) 
       path = word.Replace(@"\\", @"\"); 
      if (c==2) 
       fileName = word; 
      c++; 
     } 
     counter++; 
     if (path != "" && fileName != "") 
     { 
      Console.WriteLine("Path :" + path); 
      Console.WriteLine("FileName: " + fileName); 
      popup dlg = new popup(path, fileName); 
      dlg.Show(); 

      //Pauses the loop for 10 sec but does not lock up the UI. 
      await Task.Delay(10000); 
     } 
    }