EPPlus/ExcelProtectedRange.cs

using OfficeOpenXml.Utils;
using System.Xml;

namespace OfficeOpenXml
{
    public class ExcelProtectedRange : XmlHelper
    {
        public string Name
        {
            get
            {
                return GetXmlNodeString("@name");
            }
            set
            {
                SetXmlNodeString("@name",value);
            }
        }
        ExcelAddress _address=null;
        public ExcelAddress Address 
        { 
            get
            {
                if(_address==null)
                {
                    _address=new ExcelAddress(GetXmlNodeString("@sqref"));
                }
                return _address;
            }
            set
            {
                SetXmlNodeString("@sqref", SqRefUtility.ToSqRefAddress(value.Address));
                _address=value;
            }
        }

        internal ExcelProtectedRange(string name, ExcelAddress address, XmlNamespaceManager ns, XmlNode topNode) :
            base(ns,topNode)
        {
            Name = name;
            Address = address;
        }
    }
}