itemcommentlink.cs

ASP开发网站的 关于网站的设计和说明 还有SQL的程序 数据库

namespace ASPNET.StarterKit.Communities {
    using System;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.ComponentModel;




    //*********************************************************************
    //
    // ItemCommentLink Class
    //
    // Represents the number of comments and displays a link to the content
    // page. 
    //
    //*********************************************************************

    public class ItemCommentLink : WebControl {
    
        private string _formatText = "{0} comments Add/View";


        //*********************************************************************
        //
        // ItemCommentLink Constructor
        //
        // Adds a default cascading style sheet style
        //
        //*********************************************************************
    
        public ItemCommentLink () : base(HtmlTextWriterTag.A) {
            CssClass = "itemCommentLink";
            EnableViewState = false;
        }



        //*********************************************************************
        //
        // FormatText Property
        //
        // Text formatting applied to comment
        //
        //*********************************************************************
   
        public string FormatText {
            get { return _formatText; }
            set { _formatText = value;}
        }



        //*********************************************************************
        //
        // OnDataBinding Method
        //
        // Get the comment count and contentpageID from context
        //
        //*********************************************************************
   
        override protected void OnDataBinding(EventArgs e) {
            ContentItem item;

            if (NamingContainer is ContentItem)
                item = (ContentItem)NamingContainer;
            else
                item = (ContentItem)NamingContainer.NamingContainer;


            ContentInfo objContentInfo = (ContentInfo)item.DataItem;
            ViewState["CommentCount"] = objContentInfo.CommentCount;
            ViewState["ContentPageID"] = objContentInfo.ContentPageID;
        }


        //*********************************************************************
        //
        // Render Method
        //
        // Only render if comments are enabled
        //
        //*********************************************************************

        override protected void Render(HtmlTextWriter writer) {
            SectionInfo objSectionInfo = (SectionInfo)HttpContext.Current.Items["SectionInfo"];
            if (objSectionInfo.EnableComments)
                base.Render(writer);
        }


        //*********************************************************************
        //
        // AddAttributesToRender Method
        //
        // Add the HRef that links to the profile page
        //
        //*********************************************************************
        protected override void AddAttributesToRender(HtmlTextWriter writer) {
            string _link = CommunityGlobals.CalculatePath(String.Format("{0}.aspx", ViewState["ContentPageID"]));
            writer.AddAttribute(HtmlTextWriterAttribute.Href, _link);
        }        




        //*********************************************************************
        //
        // RenderContents Method
        //
        // Write the formatted comment count
        //
        //*********************************************************************
   
        override protected void RenderContents(HtmlTextWriter writer) {
            writer.Write(String.Format(_formatText, ViewState["CommentCount"]));    
        }


    }
}