//Also called from the search form.
internal void DisplaySearchResults(SearchParameters searchParams, IEnumerable<TmNode> results)
{
//I need to cache the enumeration for two reasons:
// 1: I access the enumeration to get the count, and to access the nodes.
// A new search is done each time the enumeration is iterated (even for counting).
// 2: The enumeration searches the treeviews _selected nodes.
// I clear the searchtrees selected node when I create the results,
// therefore no results are returned if the search was done on the search tree.
IList<TmNode> nodes = results.ToList();
if (nodes == null || nodes.Count == 0)
MessageBox.Show(string.Format("Sorry, your search for '{0}' in {1} has no results.",
searchParams.Description, searchParams.Location));
else
{
string resultsNodeLabel = string.Format("{0} result{1} for '{2}' in {3}",
nodes.Count, nodes.Count == 1 ? "" : "s", searchParams.Label, searchParams.Location);
searchTreeView.BeginUpdate();
searchTreeView.ClearSelectedNodes();
TmNode catNode = new CategoryNode(resultsNodeLabel);
TmTreeNode newNode = searchTreeView.Add(catNode);
if (newNode == null)
{
MessageBox.Show("Unable to add results to display");
return;
}
foreach (TmNode node in nodes)
catNode.Add(node.DeepCopy());
searchTreeView.SelectNode(newNode);
newNode.Expand();
searchTreeView.EndUpdate();
CurrentTreeView = searchTreeView;
}
}
