/*******************************************************************************
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* You may amend and distribute as you like, but don't remove this header!
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*
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* EPPlus provides server-side generation of Excel 2007/2010 spreadsheets.
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* See http://www.codeplex.com/EPPlus for details.
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*
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* Copyright (C) 2011 Jan Källman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* The GNU Lesser General Public License can be viewed at http://www.opensource.org/licenses/lgpl-license.php
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* 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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*
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* All code and executables are provided "as is" with no warranty either express or implied.
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* The author accepts no liability for any damage or loss of business that this product may cause.
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*
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* Code change notes:
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*
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* Author Change Date
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* ******************************************************************************
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* Mats Alm Added 2011-01-08
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* Jan Källman License changed GPL-->LGPL 2011-12-27
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*******************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Xml;
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using HH.WMS.Utils.EPPlus.DataValidation.Formulas.Contracts;
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using System.Globalization;
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namespace HH.WMS.Utils.EPPlus.DataValidation.Formulas
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{
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internal class ExcelDataValidationFormulaDateTime : ExcelDataValidationFormulaValue<DateTime?>, IExcelDataValidationFormulaDateTime
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{
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public ExcelDataValidationFormulaDateTime(XmlNamespaceManager namespaceManager, XmlNode topNode, string formulaPath)
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: base(namespaceManager, topNode, formulaPath)
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{
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var value = GetXmlNodeString(formulaPath);
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if (!string.IsNullOrEmpty(value))
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{
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double oADate = default(double);
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if (double.TryParse(value, NumberStyles.Any, CultureInfo.InvariantCulture, out oADate))
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{
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Value = DateTime.FromOADate(oADate);
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}
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else
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{
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ExcelFormula = value;
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}
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}
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}
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protected override string GetValueAsString()
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{
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return Value.HasValue ? Value.Value.ToOADate().ToString(CultureInfo.InvariantCulture) : string.Empty;
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}
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}
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}
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