/// <summary>
/// Adds one child element per field.
/// </summary>
/// <param name="fields">The fields to add.</param>
/// <param name="parameter">The table parameter for distinguishing each element.</param>
private void AddElements(IEnumerable<IElement> fields, IValue parameter)
{
Parameters = parameter.CreateProperty("1");
foreach (IElement child in fields)
AddElement(child, Level + 1, this);
}