执行引擎异常

发布于 2024-11-13 01:21:16 字数 415 浏览 6 评论 0原文

   private void CopyAllFilesToButton_Click_1(object sender, EventArgs e)
    {
        folderBrowserDialog1.ShowDialog();

        foreach (var item in files)
        {
                File.Copy(item, folderBrowserDialog1.SelectedPath);
        }

    }

基本上，我有很多文件路径。我想将每个文件复制到特定文件夹中。我所做的，我从工具箱中添加了folderBrowserDialog，并将其放入按钮事件中。

当它到达 File.Copy 时，它会抛出那个尴尬的异常。为什么会这样，我该如何防止它？

原文

   private void CopyAllFilesToButton_Click_1(object sender, EventArgs e)
    {
        folderBrowserDialog1.ShowDialog();

        foreach (var item in files)
        {
                File.Copy(item, folderBrowserDialog1.SelectedPath);
        }

    }

Basically, i have a number of file paths. I want to copy each one to a specific folder. What i did, i added folderBrowserDialog from the toolbox and put it inside a button event.

It throws that awkward exception when it reaches File.Copy..why is that, and how can i prevent it?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

琉璃繁缕 2024-11-20 01:21:17

您没有指定要复制到的文件，这就是异常的来源。

你正在做 File.Copy(item,folderBrownserDialog1.SelectedPath);，而你应该做
File.Copy(item,Path.Combine(folderBrownserDialog1.SelectedPath, item));

当然，这是如果 item 列表仅包含文件名，而不包含文件的完整当前路径。如果是这种情况，您需要按照以下方式执行操作：

        foreach (var item in files)
        {
            var fileName = new FileInfo(item);
            File.Copy(item, Path.Combine(folderBrownserDialog1.SelectedPath, fileName.Name));
        }

You're not specifying the file to copy to, which is where the exception is coming from.

You're doing File.Copy(item,folderBrownserDialog1.SelectedPath);, while you should be doing
File.Copy(item,Path.Combine(folderBrownserDialog1.SelectedPath, item));

That, of course, is if the list of item contains only the filenames, not the full current path to the file. If that's the case, you'll need to do something along these lines:

        foreach (var item in files)
        {
            var fileName = new FileInfo(item);
            File.Copy(item, Path.Combine(folderBrownserDialog1.SelectedPath, fileName.Name));
        }

回复收藏 0 原文

夏九 2024-11-20 01:21:17

这里的工作解决方案：

private void buttonCopyFiles_Click(object sender, EventArgs e)
{
   OpenFileDialog od = new OpenFileDialog();
   string destDir = @"D:\dest";
   od.Multiselect = true;

   if (od.ShowDialog() == DialogResult.OK)
   {
      foreach (var file in od.FileNames)
      {
         File.Copy(file, Path.Combine(destDir, Path.GetFileName(file)));
      }               
   }
}

根据所选文件数量和所选文件大小，您的应用程序可能会挂起一段时间

Here working solution:

private void buttonCopyFiles_Click(object sender, EventArgs e)
{
   OpenFileDialog od = new OpenFileDialog();
   string destDir = @"D:\dest";
   od.Multiselect = true;

   if (od.ShowDialog() == DialogResult.OK)
   {
      foreach (var file in od.FileNames)
      {
         File.Copy(file, Path.Combine(destDir, Path.GetFileName(file)));
      }               
   }
}

Depending on selected files count and selected files size, your app may hang for a while

回复收藏 0 原文

~没有更多了~