1//------------------------------------------------------------------------------
  2// <copyright company="Tunynet">
  3//     Copyright (c) Tunynet Inc.  All rights reserved.
  4// </copyright> 
  5//------------------------------------------------------------------------------
  6
  7using System;
  8using System.Collections.Generic;
  9using System.Text;
 10using SpaceBuilder.Controls.BaseClasses;
 11using SpaceBuilder.Components;
 12using System.Web.UI.WebControls;
 13using SpaceBuilder.Controls.Utils;
 14using SpaceBuilder.Blogs.Components;
 15using SpaceBuilder.Utils;
 16using SpaceBuilder.Controls;
 17using TunyNet.Utils;
 18using TunyNet.Data.Utils;
 19
 20namespace SpaceBuilder.Blogs.Controls
 21...{
 22    /**//// <summary>
 23    /// 显示文章列表
 24    /// </summary>
 25    public class ListPosts : TemplatedWebControl
 26    ...{
 27        SBContext wlContext;
 28
 29        /**//// <summary>
 30        /// 控件初始化时，父类会调用这个方法
 31        /// </summary>
 32        /// <param name="e"></param>
 33        protected override void OnInit(EventArgs e)
 34        ...{
 35            if (SkinName == null)
 36                ExternalSkinFileName = "Blogs/Skin-ListPosts.ascx";
 37            else
 38                ExternalSkinFileName = SkinName;
 39
 40            wlContext = SBContext.Current;
 41
 42            base.OnInit(e);
 43        }
 44
 45        Child Controls#region Child Controls
 46        //浏览器显示的标题
 47        Literal pageTitle;
 48        /**//// <summary>
 49        /// 控件的标题
 50        /// </summary>
 51        Literal title;
 52
 53        /**//// <summary>
 54        /// 分页控件
 55        /// </summary>
 56        Pager pager;
 57        Pager pager2;
 58        /**//// <summary>
 59        /// 文章列表
 60        /// </summary>
 61        Repeater weblogPostsRepeater;
 62
 63        #endregion
 64
 65        /**//// <summary>
 66        /// 加载子控件，父类加载皮肤文件时会调用这个方法
 67        /// </summary>
 68        protected override void AttachChildControls()
 69        ...{
 70            pageTitle = FindControl("PageTitle") as Literal;
 71            title = FindControl("Title") as Literal;
 72
 73            pager = FindControl("Pager") as Pager;
 74            pager2 = FindControl("Pager2") as Pager;
 75
 76            weblogPostsRepeater = FindControl("WeblogPostsRepeater") as Repeater;
 77            weblogPostsRepeater.ItemDataBound += new RepeaterItemEventHandler(WeblogPostsRepeater_ItemDataBound);
 78        }
 79
 80        /**//// <summary>
 81        /// 控件被加载时，会先调用这个方法
 82        /// </summary>
 83        /// <param name="e"></param>
 84        protected override void OnLoad(EventArgs e)
 85        ...{
 86            base.OnLoad(e);
 87            EnsureChildControls();
 88
 89            /**//*
 90            TagName={0}
 91             */
 92            if (!ValueHelper.IsNullOrEmpty(wlContext.GetStringFromQueryString("TagName", string.Empty)))
 93                this.TagName = wlContext.GetStringFromQueryString("TagName", string.Empty);
 94
 95            if (!Page.IsPostBack)
 96                Bind();
 97        }
 98
 99        /**//// <summary>
100        /// 绑定数据方法具体实现
101        /// </summary>
102        void Bind()
103        ...{
104            if (ValueHelper.IsNullOrEmpty(this.TagName))
105                return;
106
107            Header.AddTitle(Globals.SiteName + " :: 博客(blog)", Context);
108
109            title.Text=TagName;
110            //封装查询条件
111            BlogThreadQuery query = new BlogThreadQuery();
112            query.TagName = this.TagName;
113            query.SortBy = BlogThreadSortBy.MostRecent;
114            query.SortOrder = SortOrder.Descending;
115            query.PageIndex = pager.PageIndex;
116            query.IsPublicFilter = true;
117            //从数据库中获取文章列表
118            PagingDataSet<BlogThread> pds = BlogPosts.GetBlogThreads(query);
119            if (pds != null && pds.Records.Count > 0)
120            ...{
121                if (pager != null)
122                ...{
123                    pager.TotalRecords = pds.TotalRecords;
124                    pager.PageSize = query.PageSize;
125                }
126                if (pager2 != null)
127                ...{
128                    pager2.TotalRecords = pds.TotalRecords;
129                    pager2.PageSize = query.PageSize;
130                }
131            }
132
133            weblogPostsRepeater.DataSource = pds.Records;
134            weblogPostsRepeater.DataBind();
135        }
136
137        /**//// <summary>
138        /// 绑定每条记录项时，会调用这个方法
139        /// 目的是为了给每条记录中对应的每个子控件绑定上数据
140        /// </summary>
141        /// <param name="sender"></param>
142        /// <param name="e"></param>
143        private void WeblogPostsRepeater_ItemDataBound(object sender, RepeaterItemEventArgs e)
144        ...{
145            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
146            ...{
147                BlogThread post = (BlogThread)e.Item.DataItem;
148                if (post != null)
149                ...{
150                    HyperLink subject = e.Item.FindControl("Subject") as HyperLink;
151                    if (subject != null)
152                    ...{
153                        subject.Text = StringUtils.Trim(post.Subject, 20);
154                        subject.ToolTip = post.Subject;
155                        subject.NavigateUrl = BlogUrls.Instance().ShowPost(post);
156                        subject.Attributes["target"] = "_blank";
157                    }
158                    //是原创还是转载
159                    Literal blogPostType = e.Item.FindControl("BlogPostType") as Literal;
160                    if (blogPostType != null)
161                        blogPostType.Text = post.BlogPostTypeText;
162                    //博客名
163                    HyperLink blogName = e.Item.FindControl("BlogName") as HyperLink;
164                    if (blogName != null)
165                    ...{
166                        blogName.Text = post.Weblog.SectionName;
167                        if (ValueHelper.IsNullOrEmpty(blogName.Text))
168                            blogName.Text = post.User.DisplayName;
169
170                        blogName.ToolTip = string.Format("查看 {0} 的博客", blogName.Text);
171                        blogName.NavigateUrl = UserUrls.Instance().BlogHome(post.Weblog.ApplicationKey);
172                        blogName.Attributes["target"] = "_blank";
173                    }
174                    //发表日期
175                    Literal postDate = e.Item.FindControl("PostDate") as Literal;
176                    if (postDate != null)
177                        postDate.Text = Formatter.FormatFriendlyDate(post.PostDate);
178                    //评论数
179                    Literal commentCount = e.Item.FindControl("CommentCount") as Literal;
180                    if (commentCount != null)
181                        commentCount.Text = post.ReplyCount.ToString();
182                    //浏览数
183                    Literal hitTimes = e.Item.FindControl("HitTimes") as Literal;
184                    if (hitTimes != null)
185                        hitTimes.Text = post.HitTimes.ToString();
186                }
187            }
188        }
189
190
191        属性#region 属性
192
193        /**//// <summary>
194        /// 标签名称
195        /// </summary>
196        private string _tagName = string.Empty;
197        new public string TagName
198        ...{
199            get ...{ return _tagName; }
200            set ...{ _tagName = value; }
201        }
202
203        #endregion
204
205    }
206}