private void AddRootNode_Click(object sender, RoutedEventArgs e)
{
try
{
if (IsInContentMode())
{
var newNode = new TreeViewItemSource()
{
Content = "Root" + TestTreeViewItemsSource.Count
};
TestTreeViewItemsSource.Add(newNode);
}
else
{
var newNode = new TreeViewNode()
{
Content = "Root" + TestTreeView.RootNodes.Count
};
TestTreeView.RootNodes.Add(newNode);
if (_visualRoot == null)
{
_visualRoot = newNode;
}
}
}
catch (Exception ex)
{
ExceptionMessage.Text = ex.ToString();
}
}
private void ClearNodes_Click(object sender, RoutedEventArgs e)
{
try
{
if (IsInContentMode())
{
TestTreeViewItemsSource.Clear();
}
else if (_visualRoot != null)
{
_visualRoot.Children.Clear();
_visualRoot = null;
TestTreeView.RootNodes.Clear();
}
}
catch (Exception ex)
{
ExceptionMessage.Text = ex.ToString();
}
}
