//一层一层的手工递归绑定一专多能下的KNOWLEDGE节点
private void BindKnowledgeByLevelNum(int levelNum, int parentID, TreeViewNode tvNode, int postID)
{
KnowledgeBLL knowledgeBLL = new KnowledgeBLL();
string whereClause = String.Format("is_promotion = 1 and level_num = {0} and (parent_id = {1} or {1} = 0)", levelNum, parentID),
orderKey = "level_num, order_index";
IList <RailExam.Model.Knowledge> knowledgeList = knowledgeBLL.GetKnowledgesByWhereClause(whereClause, orderKey);
foreach (RailExam.Model.Knowledge knowledge in knowledgeList)
{
TreeViewNode newNode = new TreeViewNode();
newNode.ID = knowledge.KnowledgeId.ToString();
newNode.Text = knowledge.KnowledgeName;
newNode.Value = postID.ToString();
string whereClause2 = String.Format("PARENT_ID = {0} and IS_PROMOTION = 1", knowledge.KnowledgeId);
string orderKey2 = "LEVEL_NUM, ORDER_INDEX";
IList <RailExam.Model.Knowledge> childKnowledgeList = knowledgeBLL.GetKnowledgesByWhereClause(whereClause2, orderKey2);
if (childKnowledgeList.Count > 0)
{
BindKnowledgeByLevelNum(++levelNum, knowledge.KnowledgeId, newNode, postID);
}
tvNode.Nodes.Add(newNode);
}
}
protected void tvKnowledgeChangeCallBack_Callback(object sender, CallBackEventArgs e)
{
KnowledgeBLL objKnowledgeBll = new KnowledgeBLL();
if (e.Parameters[0] == "Insert")
{
IList <RailExam.Model.Knowledge> objList = objKnowledgeBll.GetKnowledgesByWhereClause("1=1", "Knowledge_ID desc");
hfMaxID.Value = objList[0].KnowledgeId.ToString();
hfMaxID.RenderControl(e.Output);
}
else if (e.Parameters[0] == "Delete" || e.Parameters[0] == "Update")
{
hfMaxID.Value = e.Parameters[1];
hfMaxID.RenderControl(e.Output);
}
else if (e.Parameters[0] == "UP" || e.Parameters[0] == "DOWN")
{
hfMaxID.Value = e.Parameters[1];
hfMaxID.RenderControl(e.Output);
}
tvKnowledge.Nodes.Clear();
BindKnowledgeTree();
tvKnowledge.RenderControl(e.Output);
}
protected void fvKnowledge_ItemUpdating(object sender, FormViewUpdateEventArgs e)
{
string strId = e.Keys["KnowledgeId"].ToString();
bool isTemplate = Convert.ToBoolean(e.NewValues["IsTemplate"]);
KnowledgeBLL knowledgeBll = new KnowledgeBLL();
if (isTemplate)
{
IList <RailExam.Model.Knowledge> objChildList = knowledgeBll.GetKnowledgesByParentID(Convert.ToInt32(strId));
if (objChildList.Count > 0)
{
SessionSet.PageMessage = "一专多能类别只能为知识体系叶子节点！";
e.Cancel = true;
ClientScript.RegisterStartupScript(GetType(), "jsSelectFirstNode", @"setImageBtnVisiblityUpdate()", true);
return;
}
IList <RailExam.Model.Knowledge> objTemplate = knowledgeBll.GetKnowledgesByWhereClause("Is_Template=1 and Knowledge_ID!=" + strId, "Knowledge_ID");
if (objTemplate.Count > 0)
{
SessionSet.PageMessage = "知识体系中已经存在名为【" + objTemplate[0].KnowledgeName + "】的一专多能类别！";
e.Cancel = true;
ClientScript.RegisterStartupScript(GetType(), "jsSelectFirstNode", @"setImageBtnVisiblityUpdate()", true);
return;
}
}
}
private void BindTree()
{
KnowledgeBLL knowledgeBLL = new KnowledgeBLL();
IList <RailExam.Model.Knowledge> knowledgeList = new List <RailExam.Model.Knowledge>();
if (!string.IsNullOrEmpty(Request.QueryString.Get("type")))
{
knowledgeList = knowledgeBLL.GetKnowledgesByWhereClause("id_path || '/' like '/790/%'", "LEVEL_NUM, ORDER_INDEX ASC");
TreeViewNode tvn = null;
foreach (RailExam.Model.Knowledge obj in knowledgeList)
{
tvn = new TreeViewNode();
tvn.ID = obj.KnowledgeId.ToString();
tvn.Value = obj.KnowledgeId.ToString();
tvn.Text = obj.KnowledgeName;
tvn.ToolTip = obj.KnowledgeName;
if (obj.ParentId == 0)
{
tvKnowledge.Nodes.Add(tvn);
}
else
{
try
{
tvKnowledge.FindNodeById(obj.ParentId.ToString()).Nodes.Add(tvn);
}
catch
{
tvKnowledge.Nodes.Clear();
SessionSet.PageMessage = "数据错误！";
return;
}
}
}
}
else
{
knowledgeList = knowledgeBLL.GetKnowledges();
Pub.BuildComponentArtTreeView(tvKnowledge, (IList)knowledgeList, "KnowledgeId", "ParentId", "KnowledgeName", "KnowledgeName", "KnowledgeId", null, null, null);
}
//tvKnowledge.ExpandAll();
}
protected void fvKnowledge_ItemInserting(object sender, FormViewInsertEventArgs e)
{
bool isTemplate = Convert.ToBoolean(e.Values["IsTemplate"]);
KnowledgeBLL knowledgeBll = new KnowledgeBLL();
if (isTemplate)
{
IList <RailExam.Model.Knowledge> objTemplate = knowledgeBll.GetKnowledgesByWhereClause("Is_Template=1", "Knowledge_ID");
if (objTemplate.Count > 0)
{
SessionSet.PageMessage = "知识体系中已经存在名为【" + objTemplate[0].KnowledgeName + "】的一专多能类别！";
e.Cancel = true;
ClientScript.RegisterStartupScript(GetType(), "jsSelectFirstNode", @"setImageBtnVisiblityInsert()", true);
return;
}
}
}
// 手动绑定KNOWLEDGE TreeView
private void KnowledgeTreeNodeBind(int?postID, string whereClause, TreeViewNode tvNode)
{
ComponentArt.Web.UI.TreeView virtualTree = new ComponentArt.Web.UI.TreeView();
KnowledgeBLL knowledgeBLL = new KnowledgeBLL();
IList <RailExam.Model.Knowledge> knowledgeList;
if (String.IsNullOrEmpty(whereClause))
{
knowledgeList = knowledgeBLL.GetKnowledges();
}
else
{
knowledgeList = knowledgeBLL.GetKnowledgesByWhereClause(whereClause, "level_num, order_index");
}
if (knowledgeList.Count > 0)
{
TreeViewNode tvn = null;
foreach (RailExam.Model.Knowledge knowledge in knowledgeList)
{
tvn = new TreeViewNode();
tvn.ID = knowledge.KnowledgeId.ToString();
tvn.Value = postID == null ? String.Empty : postID.ToString();
tvn.Text = knowledge.KnowledgeName;
tvn.ToolTip = knowledge.KnowledgeName;
if (knowledge.ParentId == 0)
{
if (tvNode == null)
{
this.tvKnowledge.Nodes.Add(tvn);
}
else
{
virtualTree.Nodes.Add(tvn);
}
}
else
{
try
{
if (tvNode == null)
{
tvKnowledge.FindNodeById(knowledge.ParentId.ToString()).Nodes.Add(tvn);
}
else
{
virtualTree.FindNodeById(knowledge.ParentId.ToString()).Nodes.Add(tvn);
}
}
catch
{
tvKnowledge.Nodes.Clear();
return;
}
}
}
if (tvNode != null)
{
foreach (TreeViewNode node in virtualTree.Nodes)
{
tvNode.Nodes.Add(node);
}
}
}
}