BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Utils/Document/Excel/EPPlus/ExcelProtection.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		10-AUG-2010
 * Jan Källman		    License changed GPL-->LGPL 2011-12-27
 *******************************************************************************/
using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using Zephyr.Utils.EPPlus.Utils;
namespace Zephyr.Utils.EPPlus
{
    /// <summary>
    /// Sets protection on the workbook level
    ///<seealso cref="ExcelEncryption"/> 
    ///<seealso cref="ExcelSheetProtection"/> 
    /// </summary>
    public class ExcelProtection : XmlHelper
    {
        internal ExcelProtection(XmlNamespaceManager ns, XmlNode topNode, ExcelWorkbook wb) :
            base(ns, topNode)
        {
            SchemaNodeOrder = wb.SchemaNodeOrder;
        }
        const string workbookPasswordPath = "d:workbookProtection/@workbookPassword";
        /// <summary>
        /// Sets a password for the workbook. This does not encrypt the workbook. 
        /// </summary>
        /// <param name="Password">The password. </param>
        public void SetPassword(string Password)
        {
            if(string.IsNullOrEmpty(Password))
            {
                DeleteNode(workbookPasswordPath);