/// <summary>
/// Searches the treeview for classes that matches the given string.
/// </summary>
/// <param name="pattern">The string to match.</param>
/// <returns>A list containing all the WbemTreeViewInstances that represent a class that matches the pattern.</returns>
public IEnumerable <WbemTreeViewItem> Search(string pattern)
{
// The order of traversal does not matter since we have to scan every node anyway
List <WbemTreeViewItem> resultClasses = new List <WbemTreeViewItem>();
Stack <WbemTreeViewItem> treeViewItemStack = new Stack <WbemTreeViewItem>();
foreach (WbemTreeViewItem t in Items) // initialize
{
treeViewItemStack.Push(t);
}
while (treeViewItemStack.Count != 0)
{
WbemTreeViewItem it = treeViewItemStack.Peek();
treeViewItemStack.Pop();
foreach (WbemTreeViewItem inner in it.Items)
{
treeViewItemStack.Push(inner);
}
WbemObject wbemObject = it.DataContext;
if (Regex.IsMatch(wbemObject.Path.ClassName.ToLower(), pattern.ToLower()))
{
resultClasses.Add(it);
}
}
resultClasses.Sort((x, y) => string.Compare(x.DataContext.Path.ClassName, y.DataContext.Path.ClassName, StringComparison.InvariantCulture));
return(resultClasses);
}
/// <summary>
/// Populates a logical treeview, where each WbemObject represents a node, which can have other WbemObjects as children.
/// </summary>
/// <param name="objects">List of Wbemobjects</param>
public void PopulateTreeView(IEnumerable <WbemObject> objects)
{
Items.Clear();
Dictionary <string, WbemTreeViewItem> wbemTreeViewItemForClassName = new Dictionary <string, WbemTreeViewItem>();
foreach (WbemObject wbemObject in objects)
{
WbemTreeViewItem newWbemTreeViewItem = new WbemTreeViewItem {
Header = wbemObject.Path.ClassName,
DataContext = wbemObject
};
string superclass = (string)wbemObject.SystemProperties[SystemProperties.__SUPERCLASS].Value;
string classname = (string)wbemObject.SystemProperties[SystemProperties.__CLASS].Value;
// current wbemObject is a root node.
if (superclass == null)
{
wbemTreeViewItemForClassName[classname] = newWbemTreeViewItem;
Items.Add(newWbemTreeViewItem);
}
// current wbemObject is a child node, the parent node already exists in memory
else
{
WbemTreeViewItem parent = wbemTreeViewItemForClassName[superclass];
parent.Items.Add(newWbemTreeViewItem);
wbemTreeViewItemForClassName[classname] = newWbemTreeViewItem;
}
}
}
public void ExpandTo(WbemTreeViewItem wbemTreeViewItem)
{
DependencyObject parent = wbemTreeViewItem.Parent;
while (parent is WbemTreeViewItem item)
{
item.IsExpanded = true;
parent = item.Parent;
}
}