// colToGroup is an index from aNewColumnOrder.
public GroupedTable(Database.Table table, ArrayRange range, int colToGroup, SortOrder sortOrder, FnCreateGroupTable subTable)
: base(table.Schema)
{
m_table = table;
if (m_table is ExpandTable)
{
m_expandTable = (ExpandTable)m_table;
}
m_Meta = m_table.GetMetaData();
m_GroupedColumnFirst = 0;
m_GroupedColumnLast = 0;
m_ColumnOrder = new int[] { colToGroup };// colGroupOrder;
m_SortOrder = new SortOrder[1] {
sortOrder
};
m_createGroupTable = subTable;
var col = m_table.GetColumnByIndex(colToGroup);
var metaCol = m_Meta.GetColumnByIndex(colToGroup);
if (metaCol.DefaultGroupAlgorithm != null)
{
m_GroupCollection = metaCol.DefaultGroupAlgorithm.Group(col, range, sortOrder);
}
else
{
throw new Exception("Trying to group a column without grouping algorithm. Column '" + metaCol.Name + "' from table '" + m_table.GetName() + "'");
}
InitializeFromGroupCollection(col, colToGroup);
}
public void SetCreateGroupTableDelegate(FnCreateGroupTable fn)
{
m_createGroupTable = fn;
}