/// <summary>
/// Removes the specified xtra column.
/// </summary>
/// <param name="xtraColumn">The xtra column.</param>
public void Remove(XtraColumn xtraColumn)
{
List.Remove(xtraColumn);
}
/// <summary>
/// Adds the specified xtra column.
/// </summary>
/// <param name="xtraColumn">The xtra column.</param>
public void Add(XtraColumn xtraColumn)
{
List.Add(xtraColumn);
}