[12074] | 1 | /*******************************************************************************
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| 2 | * You may amend and distribute as you like, but don't remove this header!
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| 3 | *
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| 4 | * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
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| 5 | * See http://www.codeplex.com/EPPlus for details.
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| 6 | *
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| 7 | * Copyright (C) 2011 Jan Källman
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| 8 | *
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| 9 | * This library is free software; you can redistribute it and/or
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| 10 | * modify it under the terms of the GNU Lesser General Public
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| 11 | * License as published by the Free Software Foundation; either
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| 12 | * version 2.1 of the License, or (at your option) any later version.
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| 13 |
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| 14 | * This library is distributed in the hope that it will be useful,
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 17 | * See the GNU Lesser General Public License for more details.
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| 18 | *
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| 19 | * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
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| 20 | * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
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| 21 | *
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| 22 | * All code and executables are provided "as is" with no warranty either express or implied.
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| 23 | * The author accepts no liability for any damage or loss of business that this product may cause.
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| 24 | *
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| 25 | * Code change notes:
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| 26 | *
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| 27 | * Author Change Date
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| 28 | * ******************************************************************************
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| 29 | * Jan Källman Added 21-MAR-2011
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| 30 | * Jan Källman License changed GPL-->LGPL 2011-12-16
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| 31 | *******************************************************************************/
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| 32 | using System;
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| 33 | using System.Collections.Generic;
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| 34 | using System.Text;
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| 35 | using System.Xml;
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| 36 |
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| 37 | namespace OfficeOpenXml.Table.PivotTable
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| 38 | {
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| 39 | /// <summary>
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| 40 | /// A collection of pivottable objects
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| 41 | /// </summary>
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| 42 | public class ExcelPivotTableCollection : IEnumerable<ExcelPivotTable>
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| 43 | {
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| 44 | List<ExcelPivotTable> _pivotTables = new List<ExcelPivotTable>();
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| 45 | internal Dictionary<string, int> _pivotTableNames = new Dictionary<string, int>();
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| 46 | ExcelWorksheet _ws;
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| 47 | internal ExcelPivotTableCollection(ExcelWorksheet ws)
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| 48 | {
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| 49 | var pck = ws._package.Package;
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| 50 | _ws = ws;
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| 51 | foreach(var rel in ws.Part.GetRelationships())
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| 52 | {
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| 53 | if (rel.RelationshipType == ExcelPackage.schemaRelationships + "/pivotTable")
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| 54 | {
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| 55 | var tbl = new ExcelPivotTable(rel, ws);
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| 56 | _pivotTableNames.Add(tbl.Name, _pivotTables.Count);
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| 57 | if (tbl.Id + 1 > _ws.Workbook._nextPivotTableID) _ws.Workbook._nextPivotTableID = tbl.Id + 1;
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| 58 | _pivotTables.Add(tbl);
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| 59 | }
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| 60 | }
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| 61 | }
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| 62 | private ExcelPivotTable Add(ExcelPivotTable tbl)
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| 63 | {
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| 64 | _pivotTables.Add(tbl);
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| 65 | _pivotTableNames.Add(tbl.Name, _pivotTables.Count - 1);
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| 66 | if (tbl.Id >= _ws.Workbook._nextPivotTableID)
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| 67 | {
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| 68 | _ws.Workbook._nextPivotTableID = tbl.Id + 1;
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| 69 | }
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| 70 | return tbl;
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| 71 | }
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| 72 |
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| 73 | /// <summary>
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| 74 | /// Create a pivottable on the supplied range
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| 75 | /// </summary>
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| 76 | /// <param name="Range">The range address including header and total row</param>
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| 77 | /// <param name="Source">The Source data range address</param>
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| 78 | /// <param name="Name">The name of the table. Must be unique </param>
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| 79 | /// <returns>The pivottable object</returns>
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| 80 | public ExcelPivotTable Add(ExcelAddressBase Range, ExcelRangeBase Source, string Name)
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| 81 | {
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| 82 | if (string.IsNullOrEmpty(Name))
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| 83 | {
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| 84 | Name = GetNewTableName();
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| 85 | }
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| 86 | if (Range.WorkSheet != _ws.Name)
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| 87 | {
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| 88 | throw(new Exception("The Range must be in the current worksheet"));
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| 89 | }
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| 90 | else if (_ws.Workbook.ExistsTableName(Name))
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| 91 | {
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| 92 | throw (new ArgumentException("Tablename is not unique"));
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| 93 | }
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| 94 | foreach (var t in _pivotTables)
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| 95 | {
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| 96 | if (t.Address.Collide(Range) != ExcelAddressBase.eAddressCollition.No)
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| 97 | {
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| 98 | throw (new ArgumentException(string.Format("Table range collides with table {0}", t.Name)));
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| 99 | }
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| 100 | }
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| 101 | return Add(new ExcelPivotTable(_ws, Range, Source, Name, _ws.Workbook._nextPivotTableID++));
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| 102 | }
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| 103 |
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| 104 | internal string GetNewTableName()
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| 105 | {
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| 106 | string name = "Pivottable1";
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| 107 | int i = 2;
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| 108 | while (_ws.Workbook.ExistsPivotTableName(name))
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| 109 | {
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| 110 | name = string.Format("Pivottable{0}", i++);
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| 111 | }
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| 112 | return name;
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| 113 | }
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| 114 | public int Count
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| 115 | {
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| 116 | get
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| 117 | {
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| 118 | return _pivotTables.Count;
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| 119 | }
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| 120 | }
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| 121 | /// <summary>
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| 122 | /// The pivottable Index. Base 0.
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| 123 | /// </summary>
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| 124 | /// <param name="Index"></param>
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| 125 | /// <returns></returns>
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| 126 | public ExcelPivotTable this[int Index]
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| 127 | {
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| 128 | get
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| 129 | {
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| 130 | if (Index < 0 || Index >= _pivotTables.Count)
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| 131 | {
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| 132 | throw (new ArgumentOutOfRangeException("PivotTable index out of range"));
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| 133 | }
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| 134 | return _pivotTables[Index];
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| 135 | }
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| 136 | }
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| 137 | /// <summary>
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| 138 | /// Pivottabes accesed by name
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| 139 | /// </summary>
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| 140 | /// <param name="Name">The name of the pivottable</param>
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| 141 | /// <returns>The Pivotable. Null if the no match is found</returns>
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| 142 | public ExcelPivotTable this[string Name]
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| 143 | {
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| 144 | get
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| 145 | {
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| 146 | if (_pivotTableNames.ContainsKey(Name))
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| 147 | {
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| 148 | return _pivotTables[_pivotTableNames[Name]];
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| 149 | }
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| 150 | else
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| 151 | {
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| 152 | return null;
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| 153 | }
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| 154 | }
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| 155 | }
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| 156 | public IEnumerator<ExcelPivotTable> GetEnumerator()
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| 157 | {
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| 158 | return _pivotTables.GetEnumerator();
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| 159 | }
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| 160 |
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| 161 | System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
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| 162 | {
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| 163 | return _pivotTables.GetEnumerator();
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| 164 | }
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| 165 | }
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| 166 | }
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