Question

我想做的是在MVC应用程序的视图中显示位于服务器上的文件夹的内容。

我有我认为应该为《行动》制定的内容，但我有点不确定如何实施相应的观点，我想知道是否有人能在这方面指出正确的方向。（此外，如果有人认为我的行动可以改进，欢迎提出建议：）

以下是操作：

public ActionResult Index()
        {
            DirectoryInfo salesFTPDirectory = null;
            FileInfo[] files = null;

            try
            {
                string salesFTPPath = "E:/ftproot/sales";
                salesFTPDirectory = new DirectoryInfo(salesFTPPath);
                files = salesFTPDirectory.GetFiles();
            }
            catch (DirectoryNotFoundException exp)
            {
                throw new FTPSalesFileProcessingException("Could not open the ftp directory", exp);
            }
            catch (IOException exp)
            {
                throw new FTPSalesFileProcessingException("Failed to access directory", exp);
            }

            files = files.OrderBy(f => f.Name).ToArray();

            var salesFiles = files.Where(f => f.Extension == ".xls" || f.Extension == ".xml");

            return View(salesFiles);
        }

如有任何帮助，我们将不胜感激，谢谢：）

Answer 1

如果您只想要文件名，那么您可以将Linq查询更改为

files = files.Where(f => f.Extension == ".xls" || f.Extension == ".xml")
  .OrderBy(f => f.Name)
  .Select(f => f.Name)
  .ToArray();
return View(files);

然后（假设为默认项目模板）将以下内容添加到Index.chtml视图中

<ul>
  @foreach (var name in Model) {
    <li>@name</li>
  }
</ul>

它将显示文件名列表

Answer 2

IMHO you should expose only what is really needed by the view. Think about it: do you really need to retrieve a whole FileInfo object, or only a file path? If the latter is true, just return a IEnumerable<string> to the view (instead of a IEnumerable<FileInfo>, which is what you re doing in the above code). Hint: just add a Select call to your Linq expression...
Then your view will just render that model - what you need is a foreach loop and some HTML code to do it.

Answer 3

这是剃刀视图的简化示例。它将在HTML表中输出您的文件名。

  @model IEnumerable<FileInfo>

    <h1>Files</h1>
    <table>

    @foreach (var item in Model) {
        <tr>
            <td>
                @item.Name
            </td>
        </tr>
    }

    </table>

友情链接