public virtual void AddCategory(PeriodCategory category)
{
category.Period = this;
categories.Add(category);
if (CategoriesChanged != null)
{
CategoriesChanged(this, null);
}
}
public virtual void RemoveCategory(PeriodCategory category)
{
if (categories.Contains(category))
{
categories.Remove(category);
if (CategoriesChanged != null)
{
CategoriesChanged(this, null);
}
}
}
