role.cs

微软的行业应用解决方案示例

using System;

namespace HardwareDistributor.Business
{
    public class Role : DataObject
    {
        #region Constants
        public const string ROLE_COLUMN = "Role";
        public const string ROLEID_COLUMN = "RoleId";
        public const string ROLEEMAIL_COLUMN = "EmailAddress";
        #endregion


        #region Fields
        private string _name = string.Empty;
        private Nullable<int> _roleId = null;
        private string _emailAddress = string.Empty;

        #endregion

        #region Constructor(s) & Dispose
        /// <summary>
        /// Create a new Role
        /// </summary>
        public Role() : base()
        {
        }


        /// <summary>
        /// Create an unmodified Role
        /// </summary>
        /// <param name="roleId">Id of the Role</param>
        /// <param name="roleName">Name of the Role</param>
        public Role(Nullable<int> roleId, 
                    string roleName, string emailAddress)
        {
            _roleId = roleId;
            _name = roleName;
            _emailAddress = emailAddress;
            _objectState= ObjectState.Unchanged;
        }
        #endregion

        #region Properties
        /// <summary>
        /// Unique Role Id
        /// </summary>
        public Nullable<int> RoleId
        {
            get
            {
                return _roleId;
            }
            set
            {
                _roleId = ChangeKey<Nullable<int>>(_roleId, value, 
                                                   ROLEID_COLUMN);
            }
        }


        /// <summary>
        /// Name that describes the Role
        /// </summary>
        public string RoleName
        {
            get
            {
                return _name;
            }
            set
            {
                // If needed put additional editing before the change value.
                _name = ChangeValue<string>(_name, value, ROLE_COLUMN);
            }
        }
        /// <summary>
        /// Email address for the role
        /// </summary>
        public string EmailAddress
        {
            get { return _emailAddress; }
            set { _emailAddress = ChangeValue<string>(_name, value, ROLEEMAIL_COLUMN); ; }
        }
        #endregion
    }
}