public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var treeItem = value as TreeItem;
if (treeItem == null)
{
if (value != null)
{
throw new ArgumentException("Illegal item type: '{0}'", value.GetType().FullName);
}
else
{
return(null);
}
////throw new ArgumentException("Illegal item type: '(null)'");
}
if (treeItem is DriveTreeItem)
{
DriveTreeItem driveItem = treeItem as DriveTreeItem;
switch (driveItem.DriveType)
{
case DriveType.CDRom:
return(cdrom);
case DriveType.Fixed:
return(drive);
case DriveType.Network:
return(netDrive);
case DriveType.NoRootDirectory:
return(drive);
case DriveType.Ram:
return(ram);
case DriveType.Removable:
return(removable);
case DriveType.Unknown:
return(drive);
}
}
else
{
return(folder);
}
return(null);
}
private void Init()
{
this.root = new TreeItem("root", null);
var systemDrives = DriveInfo.GetDrives();
foreach (var sd in systemDrives)
{
var item = new DriveTreeItem(sd.Name, sd.DriveType, this.root);
item.Children.Add(new TreeItem(EmptyItemName, item));
this.root.Children.Add(item);
}
this.Root = this.root; // to notify UI
}