如何通过[...]将文件路径添加到自定义控件WPF中设计时的属性按钮

public static readonly DependencyProperty FilePathProperty = DependencyProperty.Register(
    "FilePath", typeof(string), typeof(YourCustomControl), new PropertyMetadata(string.Empty));

public string FilePath
{
    get { return (string)GetValue(FilePathProperty); }
    set { SetValue(FilePathProperty, value); }
}

<Button Content="Browse" Click="BrowseButton_Click" />

private void BrowseButton_Click(object sender, RoutedEventArgs e)
{
    OpenFileDialog openFileDialog = new OpenFileDialog();
    if (openFileDialog.ShowDialog() == true)
    {
        FilePath = openFileDialog.FileName;
    }
}

<YourCustomControl FilePath="{Binding SelectedFilePath}" />