void TreeViewOnSelectedItemChanged(object sender,
RoutedPropertyChangedEventArgs <object> args)
{
// Get selected item.
// Получить выбранный элемент.
DirectoryTreeViewItem item = args.NewValue as DirectoryTreeViewItem;
// Clear out the DockPanel.
// Снимите DockPanel.
stack.Children.Clear();
// Fill it up again.
// Заполните его снова.
FileInfo[] infos;
try
{
infos = item.DirectoryInfo.GetFiles();
}
catch
{
return;
}
foreach (FileInfo info in infos)
{
TextBlock text = new TextBlock();
text.Text = info.Name;
stack.Children.Add(text);
}
}
public void RefreshTree()
{
BeginInit();
Items.Clear();
DriveInfo[] drives = DriveInfo.GetDrives();
foreach (DriveInfo drive in drives)
{
char chDrive = drive.Name.ToUpper()[0];
DirectoryTreeViewItem item = new DirectoryTreeViewItem(drive.RootDirectory);
if (chDrive != 'A' && chDrive != 'B' && drive.IsReady && drive.VolumeLabel.Length > 0)
item.Text = String.Format("{0}({1})", drive.VolumeLabel, drive.Name);
else
item.Text = String.Format("{0}({1})", drive.DriveType, drive.Name);
if (chDrive == 'A' || chDrive == 'B')
item.SelectedImage = item.UnselectedImage = new BitmapImage(new Uri(Path.Combine(Directory.GetCurrentDirectory(), "35Floppy.bmp")));
else if (drive.DriveType == DriveType.CDRom)
item.SelectedImage = item.UnselectedImage = new BitmapImage(new Uri(Path.Combine(Directory.GetCurrentDirectory(), "CDDrive.bmp")));
else
item.SelectedImage = item.UnselectedImage = new BitmapImage(new Uri(Path.Combine(Directory.GetCurrentDirectory(), "Drive.bmp")));
Items.Add(item);
if (chDrive != 'A' && chDrive != 'B' && drive.IsReady)
item.Populate();
}
EndInit();
}
protected override void OnExpanded(RoutedEventArgs args)
{
base.OnExpanded(args);
foreach (object obj in Items)
{
DirectoryTreeViewItem item = obj as DirectoryTreeViewItem;
item.Populate();
}
}
public void RefreshTree()
{
BeginInit();
Items.Clear();
// Obtain the disk drives.
DriveInfo[] drives = DriveInfo.GetDrives();
foreach (DriveInfo drive in drives)
{
char chDrive = drive.Name.ToUpper()[0];
DirectoryTreeViewItem item =
new DirectoryTreeViewItem(drive.RootDirectory);
// Display VolumeLabel if drive ready; otherwise just DriveType.
if (chDrive != 'A' && chDrive != 'B' &&
drive.IsReady && drive.VolumeLabel.Length > 0)
{
item.Text = String.Format("{0} ({1})", drive.VolumeLabel,
drive.Name);
}
else
{
item.Text = String.Format("{0} ({1})", drive.DriveType,
drive.Name);
}
// Determine proper bitmap for drive.
if (chDrive == 'A' || chDrive == 'B')
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/35FLOPPY.BMP"));
}
else if (drive.DriveType == DriveType.CDRom)
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/CDDRIVE.BMP"));
}
else
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/DRIVE.BMP"));
}
Items.Add(item);
// Populate the drive with directories.
if (chDrive != 'A' && chDrive != 'B' && drive.IsReady)
{
item.Populate();
}
}
EndInit();
}
public void RefreshTree()
{
BeginInit();
Items.Clear();
// Obtain the disk drives.
DriveInfo[] drives = DriveInfo.GetDrives();
foreach (DriveInfo drive in drives)
{
char chDrive = drive.Name.ToUpper()[0];
DirectoryTreeViewItem item =
new DirectoryTreeViewItem(drive.RootDirectory);
// Display VolumeLabel if drive ready; otherwise just DriveType.
if (chDrive != 'A' && chDrive != 'B' &&
drive.IsReady && drive.VolumeLabel.Length > 0)
item.Text = String.Format("{0} ({1})", drive.VolumeLabel,
drive.Name);
else
item.Text = String.Format("{0} ({1})", drive.DriveType,
drive.Name);
// Determine proper bitmap for drive.
if (chDrive == 'A' || chDrive == 'B')
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/35FLOPPY.BMP"));
else if (drive.DriveType == DriveType.CDRom)
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/CDDRIVE.BMP"));
else
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/DRIVE.BMP"));
Items.Add(item);
// Populate the drive with directories.
if (chDrive != 'A' && chDrive != 'B' && drive.IsReady)
item.Populate();
}
EndInit();
}
public void RefreshTree()
{
BeginInit();
Items.Clear();
DriveInfo[] drives = DriveInfo.GetDrives();
foreach (DriveInfo drive in drives)
{
char chDrive = drive.Name.ToUpper()[0];
DirectoryTreeViewItem item = new DirectoryTreeViewItem(drive.RootDirectory);
if (chDrive != 'A' && chDrive != 'B' && drive.IsReady && drive.VolumeLabel.Length > 0)
{
item.Text = String.Format("{0}({1})", drive.VolumeLabel, drive.Name);
}
else
{
item.Text = String.Format("{0}({1})", drive.DriveType, drive.Name);
}
if (chDrive == 'A' || chDrive == 'B')
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(new Uri(Path.Combine(Directory.GetCurrentDirectory(), "35Floppy.bmp")));
}
else if (drive.DriveType == DriveType.CDRom)
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(new Uri(Path.Combine(Directory.GetCurrentDirectory(), "CDDrive.bmp")));
}
else
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(new Uri(Path.Combine(Directory.GetCurrentDirectory(), "Drive.bmp")));
}
Items.Add(item);
if (chDrive != 'A' && chDrive != 'B' && drive.IsReady)
{
item.Populate();
}
}
EndInit();
}
void TreeViewOnSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs <object> args)
{
DirectoryTreeViewItem item = args.NewValue as DirectoryTreeViewItem;
stack.Children.Clear();
FileInfo[] infos;
try
{
infos = item.DirectoryInfo.GetFiles();
}
catch
{
return;
}
foreach (FileInfo info in infos)
{
TextBlock text = new TextBlock();
text.Text = info.Name;
stack.Children.Add(text);
}
}
public void RefreshTree()
{
//Указывает, что скоро начнется инициализация объекта System.Windows.Controls.ItemsControl.
BeginInit();
//Очищает коллекцию и освобождает ссылки на все элементы коллекции
Items.Clear();
// Obtain the disk drives.
//Получите диски.
DriveInfo[] drives = DriveInfo.GetDrives();
foreach (DriveInfo drive in drives)
{
// Получает имя диска и переводит его с верхний регистр (Заглавные буквы)
char chDrive = drive.Name.ToUpper()[0];
// Запускает конструктор класса DirectoryTreeViewItem
// передает в него текущее имя дикска
// Переходим в класс DirectoryTreeViewItem
DirectoryTreeViewItem item =
new DirectoryTreeViewItem(drive.RootDirectory);
// Display VolumeLabel if drive ready; otherwise just DriveType.
//Отображать VolumeLabel, если диск готов; иначе просто DriveType.
if (chDrive != 'A' && chDrive != 'B' &&
drive.IsReady && drive.VolumeLabel.Length > 0)
{
item.Text = String.Format("{0} ({1})", drive.VolumeLabel,
drive.Name);
}
else
{
item.Text = String.Format("{0} ({1})", drive.DriveType,
drive.Name);
}
// Determine proper bitmap for drive.
//Определите правильное растровое изображение для диска.
if (chDrive == 'A' || chDrive == 'B')
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/35FLOPPY.BMP"));
}
else if (drive.DriveType == DriveType.CDRom)
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/CDDRIVE.BMP"));
}
else
{
item.SelectedImage = item.UnselectedImage = new BitmapImage(
new Uri("pack://application:,,/Images/DRIVE.BMP"));
}
Items.Add(item);
// Populate the drive with directories.
//Заполните накопитель каталогами.
if (chDrive != 'A' && chDrive != 'B' && drive.IsReady)
{
item.Populate();
}
}
EndInit();
}
