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source: trunk/HeuristicLab.ExtLibs/HeuristicLab.EPPlus/4.0.3/EPPlus-4.0.3/DataValidation/Formulas/ExcelDataValidationFormulaDateTime.cs @ 18242

Last change on this file since 18242 was 12074, checked in by sraggl, 10 years ago

#2341: Added EPPlus-4.0.3 to ExtLibs

File size: 2.9 KB
Line 
1/*******************************************************************************
2 * You may amend and distribute as you like, but don't remove this header!
3 *
4 * EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
5 * See http://www.codeplex.com/EPPlus for details.
6 *
7 * Copyright (C) 2011  Jan Källman
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
17 * See the GNU Lesser General Public License for more details.
18 *
19 * The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
20 * If you unfamiliar with this license or have questions about it, here is an http://www.gnu.org/licenses/gpl-faq.html
21 *
22 * All code and executables are provided "as is" with no warranty either express or implied.
23 * The author accepts no liability for any damage or loss of business that this product may cause.
24 *
25 * Code change notes:
26 *
27 * Author             Change            Date
28 * ******************************************************************************
29 * Mats Alm                       Added                   2011-01-08
30 * Jan Källman        License changed GPL-->LGPL  2011-12-27
31 *******************************************************************************/
32using System;
33using System.Collections.Generic;
34using System.Linq;
35using System.Text;
36using System.Xml;
37using OfficeOpenXml.DataValidation.Formulas.Contracts;
38using System.Globalization;
39
40namespace OfficeOpenXml.DataValidation.Formulas
41{
42    internal class ExcelDataValidationFormulaDateTime : ExcelDataValidationFormulaValue<DateTime?>, IExcelDataValidationFormulaDateTime
43    {
44        public ExcelDataValidationFormulaDateTime(XmlNamespaceManager namespaceManager, XmlNode topNode, string formulaPath)
45            : base(namespaceManager, topNode, formulaPath)
46        {
47            var value = GetXmlNodeString(formulaPath);
48            if (!string.IsNullOrEmpty(value))
49            {
50                double oADate = default(double);
51                if (double.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out oADate))
52                {
53                    Value = DateTime.FromOADate(oADate);
54                }
55                else
56                {
57                    ExcelFormula = value;
58                }
59            }
60        }
61
62        protected override string GetValueAsString()
63        {
64            return Value.HasValue ? Value.Value.ToOADate().ToString(CultureInfo.InvariantCulture) : string.Empty;
65        }
66
67    }
68}
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