postlist.cs

这是一个简单的论坛程序源码

using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using NetFocus.Web.Core;

namespace NetFocus.Web.Applications.Forum
{
    public class PostList : UserControl
    {
        protected Repeater list;
        protected Pager pager;
        protected CurrentPage currentPage;

        protected override void OnLoad(EventArgs e)
        {
            if (!Page.IsPostBack && !AjaxManager.IsCallBack)
            {
                BindData();
            }
            AjaxManager.Register(this, "AjaxMethod");
        }

        private void BindData()
        {
            if (list == null)
            {
                return;
            }

            EntityList posts = BusinessManager.GetPostList(RequestBuilder.BuildPostListRequest(WebContext.Current.ParentId, pager.PageIndex, pager.PageSize));

            list.DataSource = posts;
            list.DataBind();

            if (pager != null && currentPage != null)
            {
                pager.TotalPages = pager.CalculateTotalPages(posts.TotalCount);
                currentPage.TotalRecords = posts.TotalCount;
                currentPage.TotalPages = pager.TotalPages;
                currentPage.PageIndex = pager.PageIndex;
            }
        }

        #region Ajax Method

        [AjaxMethod(IncludeControlValuesWithCallBack = false)]
        public void DeletePost(int postId)
        {
            BusinessManager.DeletePost(postId);

            Thread thread = BusinessManager.GetThread(RequestBuilder.BuildThreadOnlyRequest(WebContext.Current.ParentId)) as Thread;
            if (thread != null)
            {
                thread.TotalPosts--;
                Entities.UpdateEntity(thread);
            }
        }

        [AjaxMethod(IncludeControlValuesWithCallBack = false)]
        public void DeletePosts(string postIds)
        {
            if (string.IsNullOrEmpty(postIds))
            {
                return;
            }
            string[] postIdArray = postIds.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);
            int postId = 0;
            foreach (string stringPostId in postIdArray)
            {
                try
                {
                    postId = Int32.Parse(stringPostId);
                }
                catch
                {
                    continue;
                }
                if (postId > 0)
                {
                    DeletePost(postId);
                }
            }
        }

        #endregion

    }
}