object IValueConverter.Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var path = (string)value;
// if path is null
if (path == null)
{
return(null);
}
//get name of file/folder
var name = DirectoryStructure.GetFileFolderName(path);
//by default, assume file image
var image = "Images/file.png";
if (string.IsNullOrEmpty(name))
{
image = "Images/drive.png";
}
else if (new FileInfo(path).Attributes.HasFlag(FileAttributes.Directory))
{
image = "Images/folder-closed.png";
}
return(new BitmapImage(new Uri($"pack://application:,,,/{image}")));
}
//expands directory
private void Expand()
{
if (this.Type == DirectoryItemType.File)
{
return;
}
var children = DirectoryStructure.GetDirectoryContent(this.FullPath);
this.Children = new ObservableCollection <DirectoryItemViewModel>(
children.Select(content => new DirectoryItemViewModel(content.FullPath, content.Type)));
}
