myforumsview.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> 
//------------------------------------------------------------------------------

// TODO: Remove code that display help...

using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using CommunityServer.Components;
using CommunityServer.Controls;
using CommunityServer.Discussions.Components;

namespace CommunityServer.Discussions.Controls 
{

    // *********************************************************************
    //  MyForumsView
    //
    /// <summary>
    /// This server control is used to display top level threads. Note, a thread
    /// is a post with more information. The Thread class inherits from the Post
    /// class.
    /// </summary>
    /// 
    // ********************************************************************/
    public class MyForumsView : SkinnedWebControl 
    {

        #region Member variables and constructor
        string skinFilename              = "View-MyForums.ascx";
        
        CSContext csContext = CSContext.Current;
        //internal Forum forum;
        //Control threadDisplay;
        Control noThreadsToDisplay;
        internal Repeater announcements;
        internal Repeater threads;
        Pager pager;
        CurrentPage currentPage;
        ThreadSet threadSet;
        DateFilter dateFilter;
        SortThreadsBy sortBy = SortThreadsBy.LastPost;
        SortOrder sortOrder = SortOrder.Ascending;
        ThreadViewMode mode = ThreadViewMode.Default;
        //EmailNotificationDropDownList ddlTracking;
        ThreadSortDropDownList threadSortddl;
        SortOrderDropDownList sortOrderddl;
        Button sortButton;
        Button rememberSettingsButton;
        HideReadPostsDropDownList hideReadPosts;
		

        // *********************************************************************
        //  MyForumsView
        //
        /// <summary>
        /// The constructor simply checks for a ForumID value passed in via the
        /// HTTP POST or GET.
        /// properties.
        /// </summary>
        /// 
        // ********************************************************************/
        public MyForumsView() 
        {

            if (SkinFilename == null)
                SkinFilename = skinFilename;

        }
        #endregion

        #region Skin initialization
        // *********************************************************************
        //  Initializeskin
        //
        /// <summary>
        /// Initializes the user control loaded in CreateChildControls. Initialization
        /// consists of finding well known control names and wiring up any necessary events.
        /// </summary>
        /// 
        // ********************************************************************/ 
        protected override void InitializeSkin(Control skin) 
        {

            // Find the controls we need to databind
            //
            //threadDisplay = skin.FindControl("ThreadDisplay");
            noThreadsToDisplay = skin.FindControl("NoThreadsToDisplay");
            threads = (Repeater) skin.FindControl("Threads");
            announcements = (Repeater) skin.FindControl("Announcements");
            hideReadPosts = (HideReadPostsDropDownList) skin.FindControl("HideReadPosts");
            threadSortddl = (ThreadSortDropDownList) skin.FindControl("SortThreads");
            sortOrderddl = (SortOrderDropDownList) skin.FindControl("SortOrder");

            // Ensure we have an authenticated user if the user is asking for the private messages
            //
            if ((csContext.ForumID == 0) && (csContext.User.IsAnonymous))
                throw new CSException(CSExceptionType.SectionNotFound, csContext.ForumID.ToString());

            sortButton = (Button) skin.FindControl("SortThreadsButton");
            if (sortButton != null) 
            {
                sortButton.Text = ResourceManager.GetString("ViewThreads_SortThreads");
                sortButton.Click += new EventHandler(Sort_Changed);
            }


            rememberSettingsButton = (Button) skin.FindControl("RememberSettingsButton");
            if (rememberSettingsButton != null) 
            {
                rememberSettingsButton.Text = ResourceManager.GetString("ViewThreads_RememberSettings");
                rememberSettingsButton.Click += new EventHandler(RememberSortSettings_Click);
            }

            // Subscribe to the date filter's changed event
            //
            dateFilter = (DateFilter) skin.FindControl("DateFilter");

            if (dateFilter != null)
                dateFilter.DateChanged += new EventHandler(Sort_Changed);
            else
                dateFilter = new DateFilter();

            // Find the Pager and current page controls
            //
            pager = (Pager) skin.FindControl("Pager");
            currentPage = (CurrentPage) skin.FindControl("CurrentPage");

            // Do we have any sortBy / sortOrder data?
            //
            SetSort();

            // Do we have any rembered settings to apply?
            if (!csContext.User.IsAnonymous) 
            {
                UserCookie cookie = new UserCookie(csContext.User);

                ForumUserOptions options = cookie.GetForumOptions(csContext.ForumID);

                if (options.HasSettings) 
                {
                    
                    dateFilter.Items.FindByValue( ((int) options.DateFilter).ToString() ).Selected = true;
                    hideReadPosts.SelectedValue = options.HideReadPosts;
                    threadSortddl.SelectedValue = options.SortBy;
                    sortOrderddl.SelectedValue = options.SortOrder;

                }

            } 
            else if (mode != ThreadViewMode.Default) 
            {
//                if (!csContext.User.IsAnonymous)
//                    ddlTracking.Visible = false;
            }

            if (csContext.User.IsAnonymous) 
            {
                hideReadPosts.Visible = false;
                rememberSettingsButton.Visible = false;
                dateFilter.Items.FindByValue( ((int) CSContext.Current.SiteSettings.DefaultThreadDateFilter).ToString() );
            }

            DataBind();


        }
        #endregion

        #region Internal helper methods
        private void SetSort() 
        {

			CSContext context = CSContext.Current;

            int _sortBy = context.GetIntFromQueryString("sb",-1);
            int _sortOrder = context.GetIntFromQueryString("d",-1);

            if (_sortBy > -1)
                sortBy = (SortThreadsBy) _sortBy;

            if (_sortOrder > -1)
                sortOrder = (SortOrder) _sortOrder;

        }
        #endregion

        #region Events
        public void Sort_Changed (Object sender, EventArgs e) 
        {
            DataBind();
        }

        public void RememberSortSettings_Click (Object sender, EventArgs e) 
        {
            string forumSettings = (int) threadSortddl.SelectedValue + ":" + (int) sortOrderddl.SelectedValue + ":" + (int) dateFilter.SelectedValue + ":" + hideReadPosts.SelectedValue.ToString().Substring(0,1) + ":" + (int) ThreadUsersFilter.HideTopicsParticipatedIn;
            UserCookie userCookie = new UserCookie( csContext.User );
            userCookie.SaveForumOptions(csContext.ForumID, forumSettings);
            Sort_Changed(sender, e);
        }

        #endregion

        #region Databinding
        public override void DataBind() 
        {
            DateTime dateFilterValue;
            int forumID = -1;

//            if ((forum != null) && (forum.SectionID > 0))
//                forumID = forum.SectionID;

            if (dateFilter.SelectedValue == ThreadDateFilterMode.LastVisit)
                dateFilterValue = CSContext.Current.User.GetUserCookie().LastVisit;
            else
                dateFilterValue = dateFilter.SelectedDate;


            // Get a populated thread set
            //
            threadSet = Threads.GetThreads(forumID, pager.PageIndex, pager.PageSize, CSContext.Current.User, dateFilterValue, threadSortddl.SelectedValue, sortOrderddl.SelectedValue, ThreadStatus.NotSet, ThreadUsersFilter.HideTopicsParticipatedIn, false, hideReadPosts.SelectedValue, false, true);

            if ((threadSet.Announcements.Count > 0) && (mode != ThreadViewMode.Unanswered) && (mode != ThreadViewMode.Active) ) 
            {
                announcements.DataSource = threadSet.Announcements;
                announcements.DataBind();
            } 
            else if ( (mode != ThreadViewMode.Unanswered) && (mode != ThreadViewMode.Active) )  
            {
                announcements.DataSource = null;
                announcements.DataBind();
            }

            // Do we have posts to display?
            //
            if (threadSet.Threads.Count > 0) 
            {
                threads.DataSource = threadSet.Threads;
                threads.DataBind();
            } 
            else 
            {
                threads.DataSource = null;
                threads.DataBind();
            }

            // Do we have announcements or threads?
            //
            if ((threads.DataSource == null) && (announcements.DataSource == null)) 
            {
                noThreadsToDisplay.Visible = true;
            } 
            else 
            {
                noThreadsToDisplay.Visible = false;
            }


            pager.TotalRecords = currentPage.TotalRecords = threadSet.TotalRecords;
            currentPage.TotalPages = pager.CalculateTotalPages();
            currentPage.PageIndex = pager.PageIndex;

        }
        #endregion

    }

}