有沒有辦法以編程方式檢查是否打開Excel文件

Question

我想檢查一個特定的Excel文件是否已經打開。否則，當我在C＃程序中重新打開相同的文件時，它將以只讀格式打開。有什麼方法可以找出文件是否已經打開？

Answer 1

如果如果由其他程序的代碼可以幫助你看着辦吧開了，但您將無法打開該文件

<!-- language: c# --> 
protected virtual bool IsFileLocked(FileInfo file) 
{ 
FileStream stream = null; 

    try 
    { 
     stream = file.Open(FileMode.Open, FileAccess.ReadWrite, FileShare.None); 
    } 
    catch (IOException) 
    { 
     //the file is unavailable because it is: 
     //still being written to 
     //or being processed by another thread 
     //or does not exist (has already been processed) 
     return true; 
    } 
    finally 
    { 
     if (stream != null) 
      stream.Close(); 
    } 

    //file is not locked 
    return false; 
} 

（但你不能用它做任何事情時，文件必須從打開它的程序中關閉）