Question

我正在开发以观察文件更改，显示通知并将更改列表插入到listview中。如果更改excel文件的属性，我很难只想更改通知。现在如果更改excel属性，显示创建，删除，重命名通知。有人可以向我推荐吗？

代码：

string filepath = C:\New Folder;
private void watcher_Changed(object sender, FileSystemEventArgs e)
    {
        sfilepath = e.FullPath.Substring(0, e.FullPath.Length - e.Name.Length - 1);
        if (sfilepath == filepath)
        {
            FileInfo fileInfo = new FileInfo(e.FullPath);
            DateTime lastWriteTime = fileInfo.LastWriteTime;
            DateTime nowdt = DateTime.Now;
            if (lastWriteTime == nowdt)
            {                    
                this.notifyIcon1.ShowBalloonTip(1, "File " + e.ChangeType, e.FullPath, ToolTipIcon.Info);                                        
            }
        }
    }

    private void watcher_Created(object sender, FileSystemEventArgs e)
    {
        sfilepath = e.FullPath.Substring(0, e.FullPath.Length - e.Name.Length - 1);
        if (sfilepath == filepath)
        {
            this.notifyIcon1.ShowBalloonTip(1, "File " + e.ChangeType, e.FullPath, ToolTipIcon.Info);                                
        }
    }

    private void watcher_Deleted(object sender, FileSystemEventArgs e)
    {
        sfilepath = e.FullPath.Substring(0, e.FullPath.Length - e.Name.Length - 1);
        if (sfilepath == filepath)
        {
            this.notifyIcon1.ShowBalloonTip(1, "File " + e.ChangeType, e.FullPath, ToolTipIcon.Info);                               
        }
    }

    private void watcher_Renamed(object sender, RenamedEventArgs e)
    {
        sfilepath = e.FullPath.Substring(0, e.FullPath.Length - e.Name.Length - 1);
        if (sfilepath == filepath)
        {
            this.notifyIcon1.ShowBalloonTip(1, "File Renamed", e.OldFullPath + " renamed to " + e.FullPath, ToolTipIcon.Info);                                
        }
    }

更改清单：

New Microsoft Excel ワークシート.xls  2011/10/10 11:00:15 Created C:\New Folder
B1F38000                2011/10/10 11:00:55 Created C:\New Folder
New Microsoft Excel ワークシート.xls~RF83f213.TMP 2011/10/10 11:01:16 Created C:\New Folder
New Microsoft Excel ワークシート.xls  2011/10/10 11:01:16 Deleted C:\New Folder   
New Microsoft Excel ワークシート.xls  2011/10/10 11:01:16 Renamed C:\New Folder
New Microsoft Excel ワークシート.xls~RF83f213.TMP 2011/10/10 11:01:18 Deleted C:\New Folder

Answer 1

您可以设置FileSystemWatcher仅关注特定文件夹，因此对filepath的检查是多余的。

否则，请按照您当前的方式执行操作，但请检查触发事件的文件的文件名，以查看它是否包含XLS，XLSX，XLSM或任何文件上的其他Excel扩展。

如何在C＃中观看excel文件的变化？

1 个答案: