source: trunk/HeuristicLab.ExtLibs/HeuristicLab.EPPlus/4.0.3/EPPlus-4.0.3/DataValidation/Formulas/ExcelDataValidationFormulaCustom.cs

/*******************************************************************************
 * 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
 * ******************************************************************************
 * Mats Alm                       Added                   2011-01-08
 * Jan Källman        License changed GPL-->LGPL  2011-12-27
 *******************************************************************************/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using OfficeOpenXml.DataValidation.Formulas.Contracts;
using System.Xml;

namespace OfficeOpenXml.DataValidation.Formulas
{
    /// <summary>
    /// 
    /// </summary>
    internal class ExcelDataValidationFormulaCustom : ExcelDataValidationFormula, IExcelDataValidationFormula
    {
        public ExcelDataValidationFormulaCustom(XmlNamespaceManager namespaceManager, XmlNode topNode, string formulaPath)
            : base(namespaceManager, topNode, formulaPath)
        {
            var value = GetXmlNodeString(formulaPath);
            if (!string.IsNullOrEmpty(value))
            {
                ExcelFormula = value;
            }
            State = FormulaState.Formula;
        }

        internal override string GetXmlValue()
        {
            return ExcelFormula;
        }

        protected override string GetValueAsString()
        {
            return ExcelFormula;
        }

        internal override void ResetValue()
        {
            ExcelFormula = null;
        }
    }
}