<style>
    :local-link {
        color: red;
    }
    :local-link(0) {
        text-decoration: none;
    }
    :local-link(1) {
        text-decoration: overline;
    }
    :local-link(2) {
        background: blue;
    }</style><a href="http://www.example.com">Link 1</a><a href="http://www.example.com/2016">Link 2</a><a href="http://www.example.com/2016/01">Link 3</a><a href="http://www.example.com/2016/01/">Link 4</a><a href="http://www.example.com/2016/01/02">Link 5</a><a href="https://www.example.com/2016/01/">Link 6</a><a href="http://example.com/2016/01">Link 7</a>

 /// <summary>
    /// Represents the lable 
    /// </summary>
    public class Tag
    {
        #region Ctor
        /// <summary>
        /// Create one instance of <see cref="Tag"/>
        /// </summary>
        public Tag()
        {
            Id = SequentialGuidGenerator.NewSequentialGuid();
        }
        #endregion

        #region Properties
        /// <summary>
        /// sets or gets Tag's identifier
        /// </summary>
        public Guid  Id { get; set; }
        /// <summary>
        /// sets or gets Tag's name
        /// </summary>
        public  string Name { get; set; }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// sets or gets Tag's posts
        /// </summary>
        public virtual ICollection<BlogPost> BlogPosts { get; set; }
        #endregion
    }

  /// <summary>
    /// Represents the Post's Draft
    /// </summary>
    public  class BlogDraft
    {
        #region Ctor
        /// <summary>
        /// create one instance of <see cref="BlogDraft"/>
        /// </summary>
        public  BlogDraft()
        {
            Id = SequentialGuidGenerator.NewSequentialGuid();
        }
        #endregion

        #region Properties
        /// <summary>
        /// gets or sets Id of post's draft
        /// </summary>
        public virtual  Guid Id { get; set; }
        /// <summary>
        /// gets or sets body of post's draft
        /// </summary>
        public virtual  string Body { get; set; }
        /// <summary>
        /// gets or set title of post's draft
        /// </summary>
        public virtual  string Title { get; set; }
        /// <summary>
        /// gets or sets tags of post's draft that seperated using ','
        /// </summary>
        public virtual  string TagNames { get; set; }
        /// <summary>
        /// gets or sets value indicating whether this draft is ready to publish
        /// </summary>
        public virtual  bool IsReadyForPublish { get; set; }
        /// <summary>
        /// ges ro sets DateTime that this draft added
        /// </summary>
        public virtual  DateTime CreatedOn { get; set; }
        /// <summary>
        /// gets or sets information of User-Agent
        /// </summary>
        public virtual string Agent { get; set; }
        /// <summary>
        /// gets or sets date that this draft publish as ready
        /// </summary>
        public virtual DateTime? ReadyForPublishOn { get; set; }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// gets or sets Id of user that he is owner of this draft
        /// </summary>
        public virtual  long OwnerId { get; set; }
        /// <summary>
        /// gets or sets user that he is owner of this draft
        /// </summary>
        public virtual  User Owner { get; set; }
        #endregion
    }

 /// <summary>
    /// Represents a base class for every content in system
    /// </summary>
    public abstract class BaseContent
    {
        #region Properties

        /// <summary>
        /// get or set identifier of record
        /// </summary>
        public virtual long Id { get; set; }
        /// <summary>
        /// gets or sets date of publishing content
        /// </summary>
        public virtual DateTime PublishedOn { get; set; }
        /// <summary>
        /// gets or sets Last Update's Date
        /// </summary>
        public virtual DateTime ModifiedOn { get; set; }
        /// <summary>
        /// gets or sets the blog pot body
        /// </summary>
        public virtual string Body { get; set; }
        /// <summary>
        /// gets or sets the content title
        /// </summary>
        public virtual string Title { get; set; }
        /// <summary>
        /// gets or sets value  indicating Custom Slug
        /// </summary>
        public virtual string SlugUrl { get; set; }
        /// <summary>
        /// gets or sets meta title for seo
        /// </summary>
        public virtual string MetaTitle { get; set; }
        /// <summary>
        /// gets or sets meta keywords for seo
        /// </summary>
        public virtual string MetaKeywords { get; set; }
        /// <summary>
        /// gets or sets meta description of the content
        /// </summary>
        public virtual string MetaDescription { get; set; }
        /// <summary>
        /// gets or sets 
        /// </summary>
        public virtual string FocusKeyword { get; set; }
        /// <summary>
        /// gets or sets value indicating whether the content use CanonicalUrl
        /// </summary>
        public virtual bool UseCanonicalUrl { get; set; }
        /// <summary>
        /// gets or sets CanonicalUrl That the Post Point to it
        /// </summary>
        public virtual string CanonicalUrl { get; set; }
        /// <summary>
        /// gets or sets value indicating whether the content user no Follow for Seo
        /// </summary>
        public virtual bool UseNoFollow { get; set; }
        /// <summary>
        /// gets or sets value indicating whether the content user no Index for Seo
        /// </summary>
        public virtual bool UseNoIndex { get; set; }
        /// <summary>
        /// gets or sets value indicating whether the content in sitemap
        /// </summary>
        public virtual bool IsInSitemap { get; set; }
        /// <summary>
        /// gets or sets a value indicating whether the content comments are allowed 
        /// </summary>
        public virtual bool AllowComments { get; set; }
        /// <summary>
        /// gets or sets a value indicating whether the content comments are allowed for anonymouses 
        /// </summary>
        public virtual bool AllowCommentForAnonymous { get; set; }
        /// <summary>
        /// gets or sets  viewed count by rss
        /// </summary>
        public virtual long ViewCountByRss { get; set; }
        /// <summary>
        /// gets or sets viewed count 
        /// </summary>
        public virtual long ViewCount { get; set; }
        /// <summary>
        /// Gets or sets the total number of  comments
        /// <remarks>The same as if we run Item.Comments.where(a=>a.Status==Status.Approved).Count()
        /// We use this property for performance optimization (no SQL command executed)
        /// </remarks>
        /// </summary>
        public virtual int ApprovedCommentsCount { get; set; }
        /// <summary>
        /// Gets or sets the total number of  comments
        /// <remarks>The same as if we run Item.Comments.where(a=>a.Status==Status.UnApproved).Count()
        /// We use this property for performance optimization (no SQL command executed)
        public virtual int UnApprovedCommentsCount { get; set; }
        /// <summary>
        /// gets or sets value  indicating whether the content is logical deleted or hidden
        /// </summary>
        public virtual bool IsDeleted { get; set; }
        /// <summary>
        /// gets or sets rating complex instance
        /// </summary>
        public virtual Rating Rating { get; set; }
        /// <summary>
        /// gets or sets value indicating whether the content show with rssFeed
        /// </summary>
        public virtual bool ShowWithRss { get; set; }
        /// <summary>
        /// gets or sets value indicating maximum days count that users can send comment
        /// </summary>
        public virtual int DaysCountForSupportComment { get; set; }
        /// <summary>
        /// gets or sets information of User-Agent
        /// </summary>
        public virtual string Agent { get; set; }
        /// <summary>
        /// gets or sets icon name with size 200*200 px for snippet 
        /// </summary>
        public string SocialSnippetIconName { get; set; }
        /// <summary>
        /// gets or sets title for snippet
        /// </summary>
        public string SocialSnippetTitle { get; set; }
        /// <summary>
        /// gets or sets description for snippet
        /// </summary>
        public string SocialSnippetDescription { get; set; }
        /// <summary>
        /// gets or sets body of content's comment
        /// </summary>
        public byte[] RowVersion { get; set; }
        /// <summary>
        /// gets or sets name of tags seperated by comma that assosiated with this content fo increase performance
        /// </summary>
        public virtual string TagNames { get; set; }
        /// <summary>
        /// gets or sets counter for Content's report
        /// </summary>
        public virtual int ReportsCount { get; set; }
        #endregion

        #region NavigationProperties

        /// <summary>
        /// get or set user that create this record
        /// </summary>
        public virtual User Author { get; set; }

        /// <summary>
        /// gets or sets Id of user that create this record
        /// </summary>
        public virtual long AuthorId { get; set; }
        /// <summary>
        /// get or set  the tags integrated with content
        /// </summary>
        public virtual ICollection<Tag> Tags { get; set; }
        #endregion

    }

 /// <summary>
    /// Represents link for implemention linkback
    /// </summary>
    public class LinkBack
    {

        #region Ctor
        /// <summary>
        /// create one instance of <see cref="LinkBack"/>
        /// </summary>
        public LinkBack()
        {
            CreatedOn = DateTime.Now;
            Id = SequentialGuidGenerator.NewSequentialGuid();
        }
        #endregion

        #region Properties
        /// <summary>
        /// gets or sets link's Id
        /// </summary>
        public virtual Guid Id { get; set; }
        /// <summary>
        /// gets or sets text for show Link
        /// </summary>
        public virtual string Title { get; set; }
        /// <summary>
        /// gets or sets link's address 
        /// </summary>
        public virtual string Url { get; set; }
        /// <summary>
        /// gets or set value indicating whether this link is internal o external
        /// </summary>
        public virtual LinkBackType Type { get; set; }
        /// <summary>
        /// gets or sets date that this record is added
        /// </summary>
        public virtual DateTime CreatedOn { get; set; }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// gets or sets Post that associated
        /// </summary>
        public virtual BlogPost Post { get; set; }
        /// <summary>
        /// gets or sets id of Post that associated
        /// </summary>
        public virtual long PostId { get; set; }
        #endregion
    }


 /// <summary>
    /// represents Type of ReferrerLinks
    /// </summary>
    public enum LinkBackType
    {
        /// <summary>
        /// Internal link
        /// </summary>
        Internal,
        /// <summary>
        /// External Link
        /// </summary>
        External
    }

  /// <summary>
    /// Represents a base class for every comment in system 
    /// </summary>

    public abstract class BaseComment
    {
        #region Properties
        /// <summary>
        /// get or set identifier of record
        /// </summary>
        public virtual long Id { get; set; }
        /// <summary>
        /// gets or sets date of creation 
        /// </summary>
        public virtual DateTime CreatedOn { get; set; }
        /// <summary>
        /// gets or sets displayName of this comment's Creator if  he/she is Anonymous
        /// </summary>
        public virtual string CreatorDisplayName { get; set; }
        /// <summary>
        /// gets or sets body of blog post's comment
        /// </summary>
        public virtual string Body { get; set; }
        /// <summary>
        /// gets or sets body of blog post's comment
        /// </summary>
        public virtual Rating Rating { get; set; }
        /// <summary>
        /// gets or sets informations of agent
        /// </summary>
        public virtual string UserAgent { get; set; }
        /// <summary>
        /// gets or sets siteUrl of Creator if he/she is Anonymous
        /// </summary>
        public virtual string SiteUrl { get; set; }
        /// <summary>
        /// gets or sets Email of Creator if he/she is anonymous
        /// </summary>
        public virtual string Email { get; set; }
        /// <summary>
        /// gets or sets status of comment
        /// </summary>
        public virtual CommentStatus Status { get; set; }
        /// <summary>
        /// gets or sets Ip Address of Creator
        /// </summary>
        public virtual string CreatorIp { get; set; }
        /// <summary>
        /// gets or sets datetime that is modified
        /// </summary>
        public virtual DateTime? ModifiedOn { get; set; }
        /// <summary>
        /// gets or sets counter for report this comment
        /// </summary>
        public virtual int ReportsCount { get; set; }
        #endregion

        #region NavigationProperties

        /// <summary>
        /// get or set user that create this record
        /// </summary>
        public virtual User Creator { get; set; }

        /// <summary>
        /// get or set Id of user that create this record
        /// </summary>
        public virtual long? CreatorId { get; set; }
        #endregion
    }

public enum CommentStatus
    {
        /* 0 - approved, 1 - pending, 2 - spam, -1 - trash */
        [Display(Name = "تأیید شده")]
        Approved = 0,
        [Display(Name = "در انتظار بررسی")]
        Pending = 1,
        [Display(Name = "جفنگ")]
        Spam = 2,
        [Display(Name = "زباله دان")]
        Trash = -1
    }

/// <summary>
    /// Represents a blog post's comment
    /// </summary>
    public class BlogComment : BaseComment
    {
        #region Ctor
        /// <summary>
        /// Create One Instance for <see cref="BlogComment"/>
        /// </summary>
        public BlogComment()
        {
            Rating = new Rating();
            CreatedOn = DateTime.Now;
        }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// gets or sets BlogComment's identifier for Replying and impelemention self referencing
        /// </summary>
        public virtual long? ReplyId { get; set; }
        /// <summary>
        /// gets or sets blog's comment for Replying and impelemention self referencing
        /// </summary>
        public virtual BlogComment Reply { get; set; }
        /// <summary>
        /// get or set collection of blog's comment for Replying and impelemention self referencing
        /// </summary>
        public virtual ICollection<BlogComment> Children { get; set; }
        /// <summary>
        /// gets or sets post that this comment sent to it
        /// </summary>
        public virtual BlogPost Post { get; set; }
        /// <summary>
        /// gets or sets post'Id that this comment sent to it
        /// </summary>
        public virtual long PostId { get; set; }
        #endregion
    }

$('.current-time').each(function () {  setInterval(() => $(this).text(Date.now()), 1000);
});

 /// <summary>
    /// Represents a base class for every attachment
    /// </summary>
    public abstract class BaseAttachment
    {
        #region Ctor

        public BaseAttachment()
        {
            Id = SequentialGuidGenerator.NewSequentialGuid();
            AttachedOn = DateTime.Now;
        }
        #endregion

        #region Properties
        /// <summary>
        /// sets or gets identifier for attachment
        /// </summary>
        public virtual Guid Id { get; set; }
        /// <summary>
        /// sets or gets name for attachment
        /// </summary>
        public virtual string FileName { get; set; }
        /// <summary>
        /// sets or gets type of attachment
        /// </summary>
        public virtual string ContentType { get; set; }
        /// <summary>
        /// sets or gets size of attachment
        /// </summary>
        public virtual long Size { get; set; }
        /// <summary>
        /// sets or gets Extention of attachment
        /// </summary>
        public virtual string Extension { get; set; }
        /// <summary>
        /// sets or gets bytes of data
        /// </summary>
        //public byte[] Data { get; set; }
        /// <summary>
        /// sets or gets Creation Date
        /// </summary>
        public virtual DateTime AttachedOn { get; set; }
        /// <summary>
        /// gets or sets counts of download this file
        /// </summary>
        public virtual long DownloadsCount { get; set; }
        /// <summary>
        /// gets or sets datetime that is modified
        /// </summary>
        public virtual DateTime ModifiedOn { get; set; }
        /// <summary>
        /// gets or sets section that this file attached there
        /// </summary>
        public virtual AttachmentSection Section { get; set; }
        /// <summary>
        /// gets or sets information of user agent 
        /// </summary>
        public virtual string Agent { get; set; }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// sets or gets identifier of attachment's owner
        /// </summary>
        public virtual long OwnerId { get; set; }
        /// <summary>
        /// sets or gets identifier of attachment's owner
        /// </summary>
        public virtual User Owner { get; set; }
        #endregion
    }



    public enum  AttachmentSection
    {
        News,
        Announcement,
        ForumTopic,
        Conversation,
        BlogComment,
        NewsComment,
        PollComment,
        AnnouncementComment,
        ForumPost,
        BlogPost,
        Group,
        ...
    }

 /// <summary>
    /// Repersent the attachment for file
    /// </summary>
    public class Attachment : BaseAttachment
    {
    }

 /// <summary>
    /// Represents one news item 
    /// </summary>
    public class NewsItem : BaseContent
    {
        #region Ctor
        /// <summary>
        /// create one instance of <see cref="NewsItem"/>
        /// </summary>
        public NewsItem()
        {
            Rating = new Rating();
            PublishedOn = DateTime.Now;
        }
        #endregion

        #region Properties
        /// <summary>
        /// indicating that this news show on sidebar
        /// </summary>
        public virtual bool ShowOnSideBar { get; set; }
        /// <summary>
        /// indicate this NewsItem is approved by admin if NewsItem.Moderate==true
        /// </summary>
        public virtual bool IsApproved { get; set; }

        #endregion

        #region NavigationProperties

        /// <summary>
        /// gets or sets  newsitem's Reviews
        /// </summary>
        public ICollection<NewsComment> Comments { get; set; }

        #endregion
    }

 public class NewsComment : BaseComment
    {
        #region Ctor
        public NewsComment()
        {
            Rating = new Rating();
            CreatedOn = DateTime.Now;

        }
        #endregion

        #region NavigationProperties

        /// <summary>
        /// gets or sets body of blog NewsItem's comment
        /// </summary>
        public virtual long? ReplyId { get; set; }
        /// <summary>
        /// gets or sets body of blog NewsItem's comment
        /// </summary>
        public virtual NewsComment Reply { get; set; }
        /// <summary>
        /// gets or sets body of blog NewsItem's comment
        /// </summary>
        public virtual ICollection<NewsComment> Children { get; set; }
        /// <summary>
        /// gets or sets NewsItem that this comment sent to it
        /// </summary>
        public virtual NewsItem NewsItem { get; set; }
        /// <summary>
        /// gets or sets NewsItem'Id that this comment sent to it
        /// </summary>
        public virtual long NewsItemId { get; set; }
        #endregion
    }

/// <summary>
    /// Indicate one conversation
    /// </summary>
    public class Conversation
    {
        #region Ctor
        /// <summary>
        /// create one instance of <see cref="Conversation"/>
        /// </summary>
        public Conversation()
        {
            Id = SequentialGuidGenerator.NewSequentialGuid();
            SentOn = DateTime.Now;
        }
        #endregion

        #region Properties
        /// <summary>
        /// gets or sets identifier of record
        /// </summary>
        public virtual Guid Id { get; set; }
        /// <summary>
        /// represents this conversaion is seen
        /// </summary>
        public virtual bool IsRead { get; set; }
        /// <summary>
        /// gets or sets subject of this conversation
        /// </summary>
        public virtual string Subject { get; set; }
        /// <summary>
        /// gets or sets Date that this record added
        /// </summary>
        public virtual DateTime SentOn { get; set; }
        /// <summary>
        /// indicate this record deleted by sender
        /// </summary>
        public virtual bool DeletedBySender { get; set; }
        /// <summary>
        /// indicate this record deleted by receiver
        /// </summary>
        public virtual bool DeletedByReceiver { get; set; }
        /// <summary>
        /// gets or sets Messagescount that Unread  by sender of this conversation
        /// </summary>
        public virtual int UnReadSenderMessagesCount { get; set; }
        /// <summary>
        /// gets or sets Messagescount that Unread  by receiver of this conversation
        /// </summary>
        public virtual int UnReadReceiverMessagesCount { get; set; }
        /// <summary>
        /// gets or sets Messagescount of this conversation for increase performance
        /// </summary>
        public virtual int MessagesCount { get; set; }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// gets or sets if of  user that start this conversation
        /// </summary>
        public virtual long SenderId { get; set; }
        /// <summary>
        /// gets or sets user that start this conversation
        /// </summary>
        public virtual User Sender { get; set; }
        /// <summary>
        /// gets or sets id of  user that is recipient
        /// </summary>
        public virtual long ReceiverId { get; set; }
        /// <summary>
        /// gets or sets   user that is recipient
        /// </summary>
        public virtual User Receiver { get; set; }
        /// <summary>
        /// get or set Messages of this conversation
        /// </summary>
        public virtual ICollection<ConversationReply> Messages { get; set; }
        /// <summary>
        /// get or set Attachments that attached in this conversation
        /// </summary>
        public virtual ICollection<ConversationAttachment> Attachments { get; set; }
        #endregion

  /// <summary>
    /// Represents One Reply to Conversation
    /// </summary>
    public class ConversationReply
    {
        #region Ctor
        /// <summary>
        /// create one instance of <see cref="ConversationReply"/>
        /// </summary>
        public ConversationReply()
        {
            Id = SequentialGuidGenerator.NewSequentialGuid();
            SentOn = DateTime.Now;
        }
        #endregion

        #region Properties
        /// <summary>
        /// gets or sets identifier of record
        /// </summary>
        public virtual Guid Id { get; set; }
        /// <summary>
        /// represents this conversaionReply is seen
        /// </summary>
        public virtual bool IsRead { get; set; }
        /// <summary>
        /// gets or sets body of this conversationReply
        /// </summary>
        public virtual string Body { get; set; }
        /// <summary>
        /// gets or sets Date that this record added
        /// </summary>
        public virtual DateTime SentOn { get; set; }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// gets or sets  Parent's Id Of this ConversationReply
        /// </summary>
        public virtual Guid? ParentId { get; set; }
        /// <summary>
        /// gets or sets Parent Of this ConversationReply
        /// </summary>
        public virtual ConversationReply Parent { get; set; }
        /// <summary>
        /// get or set Children Of this ConversationReply
        /// </summary>
        public virtual ICollection<ConversationReply> Children { get; set; }
        /// <summary>
        /// gets or sets if of  user that start this conversationReply
        /// </summary>
        public virtual long SenderId { get; set; }
        /// <summary>
        /// gets or sets user that start this conversationReply
        /// </summary>
        public virtual User Sender { get; set; }
        /// <summary>
        /// gets or sets Conversation that this message sent in it 
        /// </summary>
        public virtual Conversation Conversation{ get; set; }
        /// <summary>
        /// gets or sets Id of Conversation that this message sent in it 
        /// </summary>
        public virtual Guid? ConversationId { get; set; }
        #endregion
    }

/// <summary>
    /// Represents the attachment That attached in Conversation
    /// </summary>
    public class ConversationAttachment : BaseAttachment
    {
        #region NavigationProperties

        public virtual Conversation Conversation { get; set; }
        public virtual Guid? ConversationId { get; set; }
        #endregion
    }

function getCompanyFromOrderId(orderId) {
    getOrder(orderId).then(function(order) {
        return getUser(order.orderId);
    }).then(function(user) {
        return getCompany(user.companyId);
    }).then(function(company) {
        // do something with company
    }).then(undefined, function(error) {
        // handle error
    })
}

var promise = new Promise(function(resolve, reject) {
  // انجام یکسری عملیات به عنوان مثال دریافت اطلاعات از سرور و...

  if (/* اگر کدهای فوق با موفقیت انجام شدند */) {
    resolve("عملیات با موفقیت انجام پذیرفت");
  }
  else {
    reject(Error("خطایی رخ داده است"));
  }
});

promise.then(function(result) {
  console.log(result); // "عملیات با موفقیت انجام پذیرفت "
}, function(err) {
  console.log(err); // Error: "خطایی رخ داده است"
});

var usersPromise = get('users.all');
var postsPromise = get('posts.everyone');

Promise.all([usersPromise, postsPromise])
.then(function(result){
    myController.users = result[0];
    myController.posts = result[1];
}, function(){
   delete myController.users;
   delete myController.posts; 
});

get('users.all').then(function(usersString){
    return JSON.parse(usersString);
}).then(function(users){
   myController.users = users; 
});

get('users.all').then(JSON.parse).then(function(users){
   myController.users = users; 
});

    /// <summary>
    /// Represents the Forum
    /// </summary>
    public class Forum
    {       
        #region Properties
        /// <summary>
        /// gets or sets Id that Identify Forum
        /// </summary>
        public virtual  long Id { get; set; }
        /// <summary>
        /// gets or sets Forum's title
        /// </summary>
        public virtual  string Title { get; set; }
        /// <summary>
        /// gets or sets Description of forum
        /// </summary>
        public virtual  string Description { get; set; }
        /// <summary>
        /// gets or sets value indicating Custom Slug
        /// </summary>
        public virtual string SlugUrl { get; set; }
        /// <summary>
        /// gets or sets order for display forum
        /// </summary>
        public virtual  long DisplayOrder { get; set; }
        /// <summary>
        /// Indicating This Forum is Active or Not
        /// </summary>
        public virtual  bool IsActive { get; set; }
        /// <summary>
        /// Indicating This Forum is Close or Not
        /// </summary>
        public virtual  bool IsClose { get; set; }
        /// <summary>
        /// Indicating This Forum is Private or Not
        /// </summary>
        public virtual bool IsPrivate { get; set; }
        /// <summary>
        /// sets or gets password for login to Private forums
        /// </summary>
        public virtual string PasswordHash { get; set; }
        /// <summary>
        /// sets or gets depth of forum in tree structure of forums
        /// </summary>
        public virtual int Depth { get; set; }
        /// <summary>
        /// sets or gets Count of  posts That they are Approved
        /// </summary>
        public virtual long ApprovedPostsCount { get; set; }
        /// <summary>
        /// sets or gets Count of  topics That they are Approved
        /// </summary>
        public virtual long ApprovedTopicsCount { get; set; }
        /// <summary>
        /// Gets or sets the id of last topic
        /// </summary>
        public virtual long? LastTopicId { get; set; }
        /// <summary>
        /// gets or sets date of creation of last topic
        /// </summary>
        public virtual DateTime? LastTopicCreatedOn { get; set; }
        /// <summary>
        /// gets or sets title of last topic
        /// </summary>
        public virtual string LastTopicTitle { get; set; }
        /// <summary>
        /// gets or sets creator of last topic
        /// </summary>
        public virtual string LastTopicCreator { get; set; }
        /// <summary>
        /// gets or sets id of creator that create last topic
        /// </summary>
        public virtual long? LastTopicCreatorId { get; set; }
        /// <summary>
        /// Indicate in this Forum Moderate Topics Before Display 
        /// </summary>
        public virtual bool ModerateTopics { get; set; }
        /// <summary>
        /// Indicate in this Forum Moderate Posts Before Dipslay
        /// </summary>
        public virtual bool ModeratePosts { get; set; }
        /// <summary>
        /// gets or sets Count of posts that they are UnApproved
        /// </summary>
        public virtual long UnApprovedPostsCount { get; set; }
        /// <summary>
        /// gets or sets Count of topics that they are UnApproved
        /// </summary>
        public virtual long UnApprovedTopicsCount { get; set; }
        /// <summary>
        /// gets or sets Rowversion
        /// </summary>
        public virtual  byte[] RowVersion { get; set; }
        /// <summary>
        /// gets or sets icon name with size 200*200 px for snippet 
        /// </summary>
        public virtual string SocialSnippetIconName { get; set; }
        /// <summary>
        /// gets or sets title for snippet
        /// </summary>
        public virtual string SocialSnippetTitle { get; set; }
        /// <summary>
        /// gets or sets description for snippet
        /// </summary>
        public virtual string SocialSnippetDescription { get; set; }
        /// <summary>
        /// gets or sets path for tree structure antipattern (1/3/4/23)
        /// </summary>
        public virtual string Path { get; set; }
        /// <summary>
        /// Indicate this forum inherit moderators from parent forum
        /// </summary>
        public virtual bool IsModeratorsInherited { get; set; }
        #endregion

        #region NavigationProperties
        /// <summary>
        /// sets or gets identifier forum's parent
        /// </summary>
        public virtual  long? ParentId { get; set; }
        /// <summary>
        /// sets or gets forum's parent
        /// </summary>
        public virtual Forum Parent { get; set; }
        /// <summary>
        /// sets or gets sub forums of forum
        /// </summary>
        public virtual  ICollection<Forum> Children  { get; set; }
        /// <summary>
        /// set or get topics of forum
        /// </summary>
        public virtual ICollection<ForumTopic> Topics  { get; set; }
        /// <summary>
        /// get or set moderators of this forum
        /// </summary>
        public virtual ICollection<ForumModerator> Moderators  { get; set; }
        /// <summary>
        /// get or set Subscriptions List 
        /// </summary>
        public virtual ICollection<ForumSubscription> Subscriptions  { get; set; }
        /// <summary>
        /// get or set Announcements Collection of this Forum
        /// </summary>
        public virtual ICollection<ForumAnnouncement> Announcements  { get; set; }
        #endregion
    }

   xmlns:myview="clr-namespace:ICommnadSample.Views"

        private PlusCommand plusCommand;
        public CalculatorViewModel()
        {
            plusCommand = new PlusCommand(this);
        }