c# WPF文件信息媒体源

本文关键字：媒体 信息 文件 WPF | 更新日期: 2023-09-27 18:12:35

当我得到。mp3文件没有路径，但我不能播放Uri得到一些错误。我的代码;

private void listbox2_Drop(object sender, DragEventArgs e)
{
try
{
    string[] a = (string[])(e.Data.GetData(DataFormats.FileDrop, false));
    foreach (var names in a)
    {
        FileInfo fileInfo = new FileInfo(names);
        if (fileInfo.Extension == ".MP3" ||fileInfo.Extension == ".mp3")
        {
            listbox2.Items.Add(   fileInfo.Name);
        }
    }
}
catch (Exception)
{}
}
private void listbox2_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{      
    object listboxİtems = listbox2.SelectedItem;
    if (listboxİtems != null)
    {
        media2.Source = new Uri(listboxİtems.ToString(),    UriKind.Relative); // I'm getting erors here
        media2.Play();
    }
}

他在media2处得到错误。listboxItems.ToString()字符串无法播放

c# WPF文件信息媒体源

的原因

只需将完整的FileInfo对象添加到Items中。

然后你有完整的对象来构建你的Uri与FullPath或DirectoryName和Name。

最后，将ListBox.ItemTemplate定义为适合您需要的内容(例如将TextBlock绑定到Name属性)

下面是一些请求的代码: 
private void listbox2_Drop(object sender, DragEventArgs e)
{
try
{
    string[] a = (string[])(e.Data.GetData(DataFormats.FileDrop, false));
    foreach (var names in a)
    {
        FileInfo fileInfo = new FileInfo(names);
        if (fileInfo.Extension == ".MP3" ||fileInfo.Extension == ".mp3")
        {
            listbox2.Items.Add(fileInfo); //store the full FileInfo in your Items, not just the Name property
        }
    }
}
catch (Exception)
{}
}
private void listbox2_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{      
    FileInfo listboxItem = listbox2.SelectedItem as FileInfo; //cast the SelectedItem to the FileInfo type
    if (listboxItem != null)
    {
        media2.Open(new Uri(listboxItem.FullPath, UriKind.RelativeOrAbsolute)); // if I remember well, Source is Read-Only, use Open instead
        media2.Play();
    }
}

和建议的ListBox的XAML:

<ListBox>
     <ListBox.ItemTemplate>
          <DataTemplate>
               <TextBlock Text="{Binding Name}"/>
          </DataTemplate>
     </ListBox.ItemTemplate>
</ListBox>
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