private void Button_Click(object sender, RoutedEventArgs e)
{
//figure out how wide the treeview is so we can wrap the text
var typeFace = new System.Windows.Media.Typeface(theTreeView.FontFamily.ToString());
var ft = new FormattedText("xxxxxxxxxx", System.Globalization.
CultureInfo.CurrentCulture,
theTreeView.FlowDirection,
typeFace,
theTreeView.FontSize,
theTreeView.Foreground,
VisualTreeHelper.GetDpi(this).PixelsPerDip);
charsPerLine = (int)(10 * theTreeView.ActualWidth / ft.Width);
charsPerLine -= 10; //leave a little margin...the indent is calculated for individual entries
try
{
string root = textBox1.Text;
ModuleUKS parent = (ModuleUKS)base.ParentModule;
if (!updateFailed)
{
expandedItems.Clear();
FindExpandedItems(theTreeView.Items, "");
}
updateFailed = false;
theTreeView.Items.Clear();
int childCount = 0;
int refCount = 0;
List <Thing> uks = parent.GetTheUKS();
foreach (Thing t1 in uks)
{
childCount += t1.Children.Count;
refCount += t1.References.Count;
}
statusLabel.Content = uks.Count + " Nodes " + (childCount + refCount) + " Edges";
Thing t = parent.Labeled(root);
if (t != null)
{
totalItemCount = 0;
TreeViewItem tvi = new TreeViewItem {
Header = t.Label
};
tvi.IsExpanded = true; //always expand the top-level item
theTreeView.Items.Add(tvi);
totalItemCount++;
tvi.MouseRightButtonDown += Tvi_MouseRightButtonDown;
AddChildren(t, tvi, 0, t.Label);
}
else if (root == "") //search for unattached Things
{
try //ignore problems of collection modified
{
foreach (Thing t1 in uks)
{
if (t1.Parents.Count == 0)
{
TreeViewItem tvi = new TreeViewItem {
Header = t1.Label
};
theTreeView.Items.Add(tvi);
}
}
}
catch { updateFailed = true; }
}
}
catch
{
updateFailed = true;
}
}
