/// <summary>
/// 递归创建树
/// </summary>
/// <param name="parent">父节点</param>
/// <param name="listPost">帖子数组</param>
private static void CreateTree(TreeNode <ForumPostEntity> parent, List <ForumPostEntity> listPost)
{
for (Int32 i = 0; i < listPost.Count; i++)
{
if (String.Equals(listPost[i].ParentPostID.ToString(), parent.Value))
{
TreeNode <ForumPostEntity> node = new TreeNode <ForumPostEntity>(listPost[i].PostID.ToString(), listPost[i]);
parent.AddNote(node);
listPost.RemoveAt(i--);
ForumPostManager.CreateTree(node, listPost);
}
}
}
/// <summary>
/// 创建树形列表
/// </summary>
/// <param name="topic">主题帖</param>
/// <param name="postID">帖子ID</param>
/// <returns>树形列表</returns>
public static List <TreeNode <ForumPostEntity> > GetPostTreeList(ForumTopicEntity topic, Int32 postID)
{
List <ForumPostEntity> listPost = ForumPostManager.GetForumPostList(topic, false);
if (listPost == null || listPost.Count == 0)
{
return(new List <TreeNode <ForumPostEntity> >());
}
//将主题帖放入树节点数组
List <TreeNode <ForumPostEntity> > listTreeNode = new List <TreeNode <ForumPostEntity> >();
//将父节点是帖子ID的节点放入树节点数组
for (Int32 i = 0; i < listPost.Count; i++)
{
if (listPost[i].ParentPostID == postID)
{
TreeNode <ForumPostEntity> node = new TreeNode <ForumPostEntity>(listPost[i].PostID.ToString(), listPost[i]);
listTreeNode.Add(node);
listPost.RemoveAt(i--);
}
}
//根据树节点数组创建树
if (listTreeNode.Count > 0)
{
for (Int32 i = 0; i < listTreeNode.Count; i++)
{
ForumPostManager.CreateTree(listTreeNode[i], listPost);
}
return(listTreeNode);
}
else
{
return(new List <TreeNode <ForumPostEntity> >());
}
}
/// <summary>
/// 创建树形列表
/// </summary>
/// <param name="pageIndex">页面索引</param>
/// <param name="pid">题目ID</param>
/// <returns>树形列表</returns>
public static PagedList <TreeNode <ForumPostEntity> > GetPostTreeList(Int32 pageIndex, String pid)
{
PagedList <ForumTopicEntity> listTopic = ForumTopicManager.GetForumTopicList(pageIndex, String.Empty, pid);
List <ForumPostEntity> listPost = ForumPostManager.GetForumPostList(listTopic, false);
if (listPost == null || listPost.Count == 0)
{
return(PagedList <TreeNode <ForumPostEntity> > .Empty);
}
//将主题帖放入树节点数组
List <TreeNode <ForumPostEntity> > listTreeNode = new List <TreeNode <ForumPostEntity> >();
List <ForumPostEntity> listRoot = new List <ForumPostEntity>();
//找出所有根节点
for (Int32 i = 0; i < listPost.Count; i++)
{
if (listPost[i].Deepth == 0)
{
listRoot.Add(listPost[i]);
listPost.RemoveAt(i--);
}
}
//将Topic的Type和RelativeID写入Post中
for (Int32 i = 0; i < listTopic.Count; i++)
{
for (Int32 j = 0; j < listRoot.Count; j++)
{
if (listRoot[j].TopicID == listTopic[i].TopicID)
{
if (listTopic[i].Type != ForumTopicType.Default)
{
listRoot[j].RelativeType = listTopic[i].Type;
listRoot[j].RelativeID = listTopic[i].RelativeID;
}
TreeNode <ForumPostEntity> node = new TreeNode <ForumPostEntity>(listRoot[j].PostID.ToString(), listRoot[j]);
listTreeNode.Add(node);
listRoot.RemoveAt(j);
break;
}
}
}
//根据树节点数组创建树
if (listTreeNode.Count > 0)
{
for (Int32 i = 0; i < listTreeNode.Count; i++)
{
ForumPostManager.CreateTree(listTreeNode[i], listPost);
}
return(listTreeNode.ToPagedList(listTopic.PageSize, listTopic.RecordCount));
}
else
{
return(PagedList <TreeNode <ForumPostEntity> > .Empty);
}
}