/// <summary>
/// Adds the elements of another ExpressionCollection to the end of this ExpressionCollection.
/// </summary>
/// <param name="items">
/// The ExpressionCollection whose elements are to be added to the end of this ExpressionCollection.
/// </param>
public virtual void AddRange(ExpressionCollection items)
{
foreach (ISQLExpression item in items)
{
this.List.Add(item);
}
}
public SelectStatement(ITagMapping tag): base(tag)
{
SelectList = new ExpressionCollection();
_IsDistinct = false;
_SelectedAllColumns = false;
_Limit = 0;
_Offset = 0;
_FromClause = new FromClause();
_WhereClause = new WhereClause(BinaryLogicOperator.And);
_OrderByClause = new OrderByClause(this);
}
private bool FieldExists(ExpressionCollection selectList, string fieldName)
{
foreach (ISQLExpression item in selectList)
{
Column col = item as Column;
if (col == null)
continue;
if (col.Alias == fieldName)
return true;
}
return false;
}
/// <summary>
/// Initializes a new instance of the ExpressionCollection class, containing elements
/// copied from another instance of ExpressionCollection
/// </summary>
/// <param name="items">
/// The ExpressionCollection whose elements are to be added to the new ExpressionCollection.
/// </param>
public ExpressionCollection(ExpressionCollection items)
{
this.AddRange(items);
}
/// <summary>
///
/// </summary>
/// <param name="collection"></param>
public Enumerator(ExpressionCollection collection)
{
this.wrapped = ((CollectionBase)collection).GetEnumerator();
}
public InPredicate(Column c)
{
_SubQueries = new ExpressionCollection();
_Column = c;
}
public InPredicate(Column c, ExpressionCollection expressions)
{
_SubQueries = expressions;
_Column = c;
}