public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var path = (string)value;
if (path == null)
{
return(null);
}
var name = DirectoryStructure.getFileFolderName(path);
var image = "images/box.png";
if (string.IsNullOrEmpty(name))
{
image = "images/drive.jpg";
}
else if (new FileInfo(path).Attributes.HasFlag(FileAttributes.Directory))
{
image = "images/sdafs.jpg";
}
return(new BitmapImage(new Uri($"pack://application:,,,/{image}")));
}
/// <summary>
/// When a folder is expanded, find the subfolder files
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void folder_expanded(object sender, RoutedEventArgs e)
{
#region initial Checks
var item = (TreeViewItem)sender;
//if the item contains only dummy data;
if (item.Items.Count != 1 || item.Items[0] != null)
{
return;
}
//clear dummy data
item.Items.Clear();
var fullpath = (string)item.Tag;
#endregion
//create a blank list
//ignoring every issues
#region getDirectories
var directories = new List <string>();
try
{
var dirs = Directory.GetDirectories(fullpath);
if (dirs.Length > 0)
{
directories.AddRange(dirs);
}
}
catch
{
}
//for each directory
directories.ForEach(directoryPath =>
{
var subItem = new TreeViewItem()
{
//folderName
Header = DirectoryStructure.getFileFolderName(directoryPath),
//fullpath
Tag = directoryPath
};
//add dummy item so we can expand the folder
subItem.Items.Add(null);
subItem.Expanded += folder_expanded;
item.Items.Add(subItem);
});
#endregion
#region getNewFiles
var files = new List <string>();
try
{
var fs = Directory.GetFiles(fullpath);
if (fs.Length > 0)
{
files.AddRange(fs);
}
}
catch
{
}
//for each directory
files.ForEach(filePath =>
{
var subItem = new TreeViewItem()
{
//folderName
Header = DirectoryStructure.getFileFolderName(filePath),
//fullpath
Tag = filePath
};
//add dummy item so we can expand the folder
subItem.Items.Add(null);
subItem.Expanded += folder_expanded;
item.Items.Add(subItem);
});
#endregion
}
