Question

我是C＃编程的新手。请建议我如何检索完整路径，但在我的代码中仅使用file.Name，因为我只想在listBox中输入文件名而不是完整路径

我的代码是：

listBox1.DataSource = GetFolder("..\\video\\");

private static List<string> GetFolder(string folder)
{
    List<string> FileList = new List<string>();

    var allFiles = new DirectoryInfo(folder).GetFiles("*.mpg", 
                                                    SearchOption.AllDirectories)
    foreach (FileInfo file in allFiles)
    {
        FileList.Add(file.FullName);             
    }    

    return FileList;  
}

Answer 1

FileInfo(path).Directory.FullPath

您的代码的实际问题是缺少此行的分号

var allFiles = new DirectoryInfo(folder).GetFiles("*.mpg", 
                                                    SearchOption.AllDirectories)

应该是

var allFiles = new DirectoryInfo(folder).GetFiles("*.mpg", 
                                                    SearchOption.AllDirectories);

Answer 2

如果我说得对，你想要FullPath作为值，但只显示FileName。要实现这一点，您可以使用包含这两个值的FileInfo列表，并告诉ListBox，哪个成员是值，哪个应该显示：

this.listBox1.DisplayMember = "Name";
this.listBox1.ValueMember = "FullName";
listBox1.DataSource = GetFolder("..\\video\\");

Player.URL = Convert.ToString(listBox1.SelectedValue);  // Instead of SelectedItem

private static List<FileInfo> GetFolder(string folder)
{
    List<FileInfo> fileList = new List<FileInfo>();

    foreach (FileInfo file in new DirectoryInfo(folder).GetFiles("*.mpg", SearchOption.AllDirectories))
    {
       fileList.Add(file); 
    }    

    return fileList;  
}

Answer 3

 FileList.Add(file.FullName);

请更改此行，如下所示

 FileList.Add(file.Name );

Answer 4

  listBox1.DataSource = GetFolder("..\\video\\");

  private static List<string> GetFolder(string folder)
  {
        List<string> FileList = new List<string>();

        var allFiles = new DirectoryInfo(folder).GetFiles("*.mpg", 
                                                SearchOption.AllDirectories)
        foreach (FileInfo file in allFiles)
        { 
              FileList.Add(file.Name);             
        }    

        return FileList;  
  }

如何在C＃中使用文件信息去除完整路径

4 个答案: