private void TreeView_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> e)
{
// Restore the regular colors on the newly unselected item
var previousSelection = _currentSelection;
if (previousSelection != null)
{
previousSelection.Foreground = _currentSelectionUnselectedForeground;
}
// Remember the newly selected item's specified foreground color and then clear it to
// allow the ControlTemplate to correctly set contrasting colors.
_currentSelection = (TreeViewItem)treeView.SelectedItem;
if (_currentSelection != null)
{
_currentSelectionUnselectedForeground = _currentSelection.Foreground;
_currentSelection.ClearValue(TreeViewItem.ForegroundProperty);
}
}
public void GetMoreTree(RoutedEventArgs e)
{
TreeViewItem item = (TreeViewItem)e.OriginalSource;
item.ClearValue(ItemsControl.ItemsSourceProperty);
ObservableCollection <Element> observableCollection = new ObservableCollection <Element>();
Element fileInfo = (Element)item.DataContext;
try
{
foreach (DirectoryInfo dir in new DirectoryInfo(fileInfo.FullName).GetDirectories().OrderBy(x => x.Name).ToArray())
{
ShellObject shellFolder = ShellObject.FromParsingName(dir.FullName.ToString());
BitmapSource shellThumb = shellFolder.Thumbnail.SmallBitmapSource;
Folder newItem = new Folder
{
Name = dir.ToString(),
Icon = shellThumb,
FullName = dir.FullName,
};
try
{
newItem.CountOfFolders = new DirectoryInfo(dir.FullName).GetDirectories().Length.ToString();
}
catch (UnauthorizedAccessException ex)
{
newItem.CountOfFolders = "Отказано в доступе";
}
try
{
newItem.CountOfFiles = new DirectoryInfo(dir.FullName).GetFiles().Length.ToString();
}
catch (UnauthorizedAccessException ex)
{
newItem.CountOfFiles = "Отказано в доступе";
}
try
{
newItem.CreationTime = dir.CreationTime.ToString(CultureInfo.InvariantCulture);
}
catch (UnauthorizedAccessException ex)
{
}
newItem.Children.Add(new Element
{
Name = "*",
Icon = null,
FullName = dir.FullName
});
observableCollection.Add(newItem);
}
foreach (FileInfo file in new DirectoryInfo(fileInfo.FullName).GetFiles().OrderBy(x => x.Name).ToArray())
{
System.Drawing.Icon icon = (System.Drawing.Icon)System.Drawing.Icon.ExtractAssociatedIcon(file.FullName.ToString());
if (file.Extension.ToLower() == ".jpg" || file.Extension.ToLower() == ".jpeg" || file.Extension.ToLower() == ".bmp" || file.Extension.ToLower() == ".png")
{
observableCollection.Add(new CustomImage
{
Name = file.ToString(),
Icon = icon.ToImageSource(),
FullName = file.FullName.ToString(),
Size = ByteSize.FromBytes(file.Length).ToString(),
CreationTime = file.CreationTime.ToString(CultureInfo.InvariantCulture)
});
}
else
{
observableCollection.Add(new CustomFile
{
Name = file.ToString(),
Icon = icon.ToImageSource(),
FullName = file.FullName,
Size = ByteSize.FromBytes(file.Length).ToString(),
CreationTime = file.CreationTime.ToString(CultureInfo.InvariantCulture)
});
}
}
}
catch (UnauthorizedAccessException ex)
{
Folder newIFolder = new Folder()
{
Name = "Отказано в доступе"
};
observableCollection.Add(newIFolder);
}
item.ItemsSource = observableCollection;
}
