BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Utils/Document/Excel/EPPlus/Table/PivotTable/ExcelPivotTableCollection.cs

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/*******************************************************************************
 * You may amend and distribute as you like, but don't remove this header!
 *
 * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
 * See http://www.codeplex.com/EPPlus for details.
 *
 * Copyright (C) 2011  Jan Källman
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.

 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
 * See the GNU Lesser General Public License for more details.
 *
 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
 *
 * All code and executables are provided "as is" with no warranty either express or implied. 
 * The author accepts no liability for any damage or loss of business that this product may cause.
 *
 * Code change notes:
 * 
 * Author							Change						Date
 * ******************************************************************************
 * Jan Källman		Added		21-MAR-2011
 * Jan Källman		License changed GPL-->LGPL 2011-12-16
 *******************************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using System.IO.Packaging;
using System.Xml;

namespace Zephyr.Utils.EPPlus.Table.PivotTable
{
    /// <summary>
    /// A collection of pivottable objects
    /// </summary>
    public class ExcelPivotTableCollection : IEnumerable<ExcelPivotTable>
    {
        List<ExcelPivotTable> _pivotTables = new List<ExcelPivotTable>();
        internal Dictionary<string, int> _pivotTableNames = new Dictionary<string, int>();
        ExcelWorksheet _ws;        
        internal ExcelPivotTableCollection(ExcelWorksheet ws)
        {
            Package pck = ws._package.Package;
            _ws = ws;            
            foreach(var rel in ws.Part.GetRelationships())
            {
                if (rel.RelationshipType == ExcelPackage.schemaRelationships + "/pivotTable")
                {
                    var tbl = new ExcelPivotTable(rel, ws);
                    _pivotTableNames.Add(tbl.Name, _pivotTables.Count);
                    if (tbl.Id + 1 > _ws.Workbook._nextPivotTableID) _ws.Workbook._nextPivotTableID = tbl.Id + 1;
                    _pivotTables.Add(tbl);
                }