aggregatepostlist.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.IO;
using System.Web.UI.WebControls;
using CommunityServer.Blogs.Components;
using CommunityServer.Components;
using CommunityServer.Configuration;
using CommunityServer.Controls;

namespace CommunityServer.Blogs.Controls
{
	/// <summary>
	/// Summary description for AggregatePostList.
	/// </summary>
	public class AggregatePostList : WeblogBaseTemplatedWebControl
	{
		public AggregatePostList()
		{
			//
			// TODO: Add constructor logic here
			//
		}

	    AggregateList posts = null;
        Literal title = null;
		private int pageSize = -1;

		/// <summary>
		/// Property to control the number of elements that are rendered for each page in the repeater
		/// </summary>
		public int PageSize {
			get{ return pageSize;}
			set{ pageSize = value; }
		}

	    protected override void AttachChildControls()
	    {
	        posts = FindControl("Posts") as AggregateList;
            title = FindControl("title") as Literal;

            posts.PagerIndexChanged +=new EventHandler(posts_PagerIndexChanged);
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if ( !Page.IsPostBack || !EnableViewState ) 
            {
                DataBind();
            }
        }

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

            int GroupID = Globals.SafeInt(Context.Request.QueryString["GroupID"],-1);

			int day = Globals.SafeInt(Context.Request.QueryString["d"], -1);
			int month = Globals.SafeInt(Context.Request.QueryString["m"], -1);
			int year = Globals.SafeInt(Context.Request.QueryString["y"], -1 );

            BlogThreadQuery query = new BlogThreadQuery();
            if(GroupID > -1)
            {
                query.BlogGroupID = GroupID;

                title.Text = string.Format( ResourceManager.GetString("LatestPostsTo"), WeblogGroups.GetWeblogGroup(GroupID,true,false).Name);
            }
            else
            {
                title.Text = ResourceManager.GetString("LatestPosts");                
            }
            
			if( month > 0 && month < 13 &&
				day > 0 && day < 32 && 
				year > DateTime.MinValue.Year && year <= DateTime.MaxValue.Year ) {

				try {
					query.DateFilter = new DateTime( year, month, day );				
				}
				catch{}
			}

            query.BlogPostType = BlogPostType.Post;
            query.BlogThreadType = BlogThreadType.Recent;
            query.IncludeCategories = false;
            query.IsPublished = true;
            query.PageIndex = posts.PageIndex;
            query.PageSize = this.PageSize == -1 ? WeblogConfiguration.Instance().AggregatePostCount : this.PageSize;
			query.IgnorePaging = true;
            query.SortBy = BlogThreadSortBy.MostRecent;
            query.SortOrder = SortOrder.Descending;
            query.PostConfig = BlogPostConfig.IsCommunityAggregated | BlogPostConfig.IsAggregated;
			query.FilterByList = Sections.FilterByAccessControl(Weblogs.GetWeblogs(false,true,false),Permission.View);

            ThreadSet ts = WeblogPosts.GetBlogThreads(query,true,true);

			posts.TotalRecords = ts.TotalRecords;
            posts.PageSize = query.PageSize;
            posts.DataSource = ts.Threads;
            posts.DataBind();
        }

        private void posts_PagerIndexChanged(object sender, EventArgs e)
        {
            DataBind();
        }
    }
}