public void AddChildren()
{
ICreateForm item = new CreateForm();
var button = new ButtonOfTestCase().TestCaseButton(GetId());
var labelUrl = item.CreateLabel((short)GetId(), "labelUrl");
var labelId = item.CreateLabel((short)GetId(), "labelId");
var url = new TestCaseTextBox().CreateUrl((short)GetId());
var id = new TestCaseTextBox().CreateId((short)GetId());
_nav.Children.Add(button);
_nav.Children.Add(labelUrl);
_nav.Children.Add(url);
_nav.Children.Add(labelId);
_nav.Children.Add(id);
}