aggregateupdatedgallerieslisting.cs

本系统是在asp版《在线文件管理器》的基础上设计制作

//------------------------------------------------------------------------------
// <copyright company="Telligent Systems">
//     Copyright (c) Telligent Systems Corporation.  All rights reserved.
// </copyright> 
//------------------------------------------------------------------------------

using System;
using System.Collections;
using System.Web.UI.WebControls;
using CommunityServer.Components;
using CommunityServer.Galleries.Components;

namespace CommunityServer.Galleries.Controls
{
	/// <summary>
	/// Summary description for AggregateUpdatedGalleriesListing.
	/// </summary>
	public class AggregateUpdatedGalleriesListing : GalleryTemplatedWebControl
	{

		#region Child Controls

		private Repeater repeater;

		#endregion

		#region Public Properties

		private int galleryCount = 10;
		public int GalleryCount
		{
			get { return galleryCount; }
			set { galleryCount = value; }
		}

		private int pictureCount = 5;
		public int PictureCount
		{
			get { return pictureCount; }
			set { pictureCount = value; }
		}

		#endregion

		#region Skin

		protected override void AttachChildControls()
		{
			repeater = FindControl( "GalleryRepeater" ) as Repeater;
			repeater.ItemDataBound += new RepeaterItemEventHandler(galleries_ItemDataBound);
		}

		#endregion

		#region Overrides

		protected override void OnLoad(EventArgs e)
		{
			base.OnLoad(e);
			if(!Page.IsPostBack)
				DataBind();
		}

		public override void DataBind()
		{
			base.DataBind();

			ArrayList galleries = Galleries.GetGalleries();
			Section.SectionSortBy sortBy = Gallery.SortBy;
			Gallery.SortBy = Section.SectionSortBy.LastPostDescending;
			galleries.Sort();
			Gallery.SortBy = sortBy;

			if(galleries.Count < galleryCount)
				galleryCount = galleries.Count;

			Gallery[] pageItems = new Gallery[galleryCount];
			galleries.CopyTo(0, pageItems, 0, galleryCount);

			repeater.DataSource = pageItems;
			repeater.DataBind();
		}

		#endregion

		#region Events

		private void galleries_ItemDataBound(object sender, RepeaterItemEventArgs e)
		{
			Gallery gallery = e.Item.DataItem as Gallery;

			switch(e.Item.ItemType)
			{
				case ListItemType.AlternatingItem:
				case ListItemType.Item:

					Repeater pictureRepeater = e.Item.FindControl("PictureRepeater") as Repeater;
					pictureRepeater.ItemDataBound += new RepeaterItemEventHandler(pictureRepeater_ItemDataBound);

					GalleryThreadQuery query = new GalleryThreadQuery();
					query.SectionID = gallery.SectionID;
					query.PageSize = PictureCount;
					query.SortBy = GalleryThreadSortBy.ThreadDate;
					query.SortOrder = SortOrder.Descending;

					pictureRepeater.DataSource = Pictures.GetPictures(query, true, true).Threads;
					pictureRepeater.DataBind();

					HyperLink galleryLink = e.Item.FindControl("GalleryLink") as HyperLink;
					galleryLink.Text = gallery.Name;
					galleryLink.NavigateUrl = GalleryUrls.Instance().ViewGallery(gallery.ApplicationKey);

					if(gallery.TotalThreads > 0)
					{
						Literal updated = e.Item.FindControl("Updated") as Literal;
						if(CSContext.Current.User.IsAnonymous)
							updated.Text = gallery.MostRecentPostDate.ToString(CSContext.Current.SiteSettings.DateFormat + " " + CSContext.Current.SiteSettings.TimeFormat);
						else
						{
							DateTime date = CSContext.Current.User.GetTimezone(gallery.MostRecentPostDate);
							updated.Text = date.ToString(CSContext.Current.User.Profile.DateFormat + " " + CSContext.Current.SiteSettings.TimeFormat);
						}

						HyperLink userLink = e.Item.FindControl("UserLink") as HyperLink;
						userLink.Text = gallery.MostRecentPostAuthor;
						userLink.NavigateUrl = Globals.GetSiteUrls().UserProfile(gallery.MostRecentPostAuthorID);
					}
					else
						e.Item.FindControl("UpdatedFooter").Visible = false;

					break;
			}
		}

		private void pictureRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
		{
			Picture picture = e.Item.DataItem as Picture;

			switch(e.Item.ItemType)
			{
				case ListItemType.AlternatingItem:
				case ListItemType.Item:

					GalleryImage image = e.Item.FindControl("GalleryImage") as GalleryImage;
					image.NavigateUrl = GalleryUrls.Instance().ViewPicture( Galleries.GetGallery(picture.SectionID).ApplicationKey, picture );
					image.Picture = picture;

					break;
			}
		}

		#endregion

	}
}