/// <summary>
/// Adds the item as a sort condition to the window.
/// </summary>
/// <param name="orderBy">The order by to add.</param>
public void AddOrderBy(OrderBy orderBy)
{
if (orderBy == null)
{
throw new ArgumentNullException("orderBy");
}
orderByItems.Add(orderBy);
}
/// <summary>
/// Generates the text for an OrderBy builder.
/// </summary>
/// <param name="item">The OrderBy builder to generate the text for.</param>
protected internal override void VisitOrderBy(OrderBy item)
{
visitAliasedProjection(item.Projection);
if (item.Order != Order.Default)
{
writer.Write(" ");
OrderConverter converter = new OrderConverter();
writer.Write(converter.ToString(item.Order));
}
if (item.NullPlacement != NullPlacement.Default)
{
writer.Write(" ");
NullPlacementConverter converter = new NullPlacementConverter();
writer.Write(converter.ToString(item.NullPlacement));
}
}
/// <summary>
/// Removes the sort criteria from the query.
/// </summary>
/// <param name="item">The order by item to remove.</param>
/// <returns>True if the item was removed; otherwise, false.</returns>
public bool RemoveOrderBy(OrderBy item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
return _orderBy.Remove(item);
}
/// <summary>
/// Adds a sort criteria to the query.
/// </summary>
/// <param name="item">The sort criteria to add.</param>
public void AddOrderBy(OrderBy item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
_orderBy.Add(item);
}
private void buildOrderByItem(MatchResult result, List<OrderBy> orderByList)
{
MatchResult expressionResult = result.Matches[SqlGrammar.OrderByItem.Expression];
IProjectionItem expression = (IProjectionItem)buildArithmeticItem(expressionResult);
Order order = Order.Default;
MatchResult directionResult = result.Matches[SqlGrammar.OrderByItem.OrderDirection];
if (directionResult.IsMatch)
{
order = buildOrderDirection(directionResult);
}
NullPlacement placement = NullPlacement.Default;
MatchResult placementResult = result.Matches[SqlGrammar.OrderByItem.NullPlacement];
if (placementResult.IsMatch)
{
placement = buildNullPlacement(placementResult);
}
OrderBy orderBy = new OrderBy(expression, order, placement);
orderByList.Add(orderBy);
}
/// <summary>
/// Removes the item as a sort condition to the window.
/// </summary>
/// <param name="orderBy">The order by to remove.</param>
/// <returns>True if the order by was removed; otherwise, false.</returns>
public bool RemoveOrderBy(OrderBy orderBy)
{
if (orderBy == null)
{
throw new ArgumentNullException("orderBy");
}
return orderByItems.Remove(orderBy);
}
/// <summary>
/// Visits a OrderBy builder.
/// </summary>
/// <param name="item">The item to visit.</param>
protected internal virtual void VisitOrderBy(OrderBy item)
{
}