private void AddElementToTree(object obj)
{
try
{
this.SelectedTree.AddItem(Convert.ToDouble(obj));
SelectedTree.TreeString = SelectedTree.GetString();
}
catch (NullReferenceException) { MessageBox.Show("You need to create tree first", "Error", MessageBoxButton.OK, MessageBoxImage.Error); }
catch (FormatException) { MessageBox.Show("Incorect input", "Error", MessageBoxButton.OK, MessageBoxImage.Error); }
//catch (Exception) { MessageBox.Show("Unknown error", "Error", MessageBoxButton.OK, MessageBoxImage.Error); }
}
private void RemoveElementFromTree(object obj)
{
try
{
if (obj != null)
{
this.SelectedTree.Remove(Convert.ToDouble(obj));
}
SelectedTree.TreeString = null;
SelectedTree.TreeString = SelectedTree.GetString();
}
catch (NullReferenceException)
{
MessageBox.Show("No active tree", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
catch (Exception)
{
MessageBox.Show("Incorrect input", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}