itemdownloadlink.cs

一个ASP.NET下的中文内容管理和社区系统

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




    //*********************************************************************
    //
    // ItemDownloadLink Class
    //
    // Represents a link to a file in a template
    //
    //*********************************************************************

	public class ItemDownloadLink : WebControl {


        private string _text = String.Empty;


        //*********************************************************************
        //
        // ItemDownloadLink Constructor
        //
        // Set the default css class
        //
        //*********************************************************************
		public ItemDownloadLink() : base(HtmlTextWriterTag.A) {
			CssClass = "itemDownloadLink";
			EnableViewState = false;
		}
		



        //*********************************************************************
        //
        // ItemDownloadLink Constructor
        //
        // Set the default css class
        //
        //*********************************************************************
		public string Text {
            get { return _text; }		
		    set { _text = value; }
		}
		

        //*********************************************************************
        //
        // OnDataBinding Method
        //
        // Grab the author from the container's DataItem property
        //
        //*********************************************************************
        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["ContentPageID"] = objContentInfo.ContentPageID;
        }


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


        //*********************************************************************
        //
        // RenderContents method
        //
        // Display the link label with author name
        // Notice that we HtmlEncode (Thanks Andrew D!)
        //
        //*********************************************************************
        override protected void RenderContents(HtmlTextWriter writer) {
            writer.Write(_text);    
        }


    }
}