【Vegas原创】将treeview父结点的链接改为折叠事件

详细的Hashtable方法treeview遍历请参阅:
http://www.cnblogs.com/vegaslee/archive/2008/04/17/1158321.html

现主要分享如何将父结点的链接改为折叠事件.

看一下treeview页面的客户端源文件,可以发现可折叠的图片事件:TreeView_ToggleNode(...):

<id="TreeView1n1" 
href
="javascript:TreeView_ToggleNode(TreeView1_Data,1,TreeView1n1,' ',TreeView1n1Nodes)">
<img src="/ass/WebResource.axd?d=r0O26jMIZhZAgGcswf2b2tbV9agiSKO716_OUUGC4hI1&amp;t=633468101971007218" 
alt
="折叠 社团申请" style="border-width:0;" />
</a>

这回了解了吧?只要在后台,将图片后面的超链接加上这个js脚本就可以了。

代码:

    void hashTable()
    {
        DataTable dtregion 
= GetTreeTable();
        Hashtable httree 
= new Hashtable();
        
foreach (DataRow myrow in dtregion.Rows)
        {
            TreeNode newnode 
= new TreeNode();
            newnode.Value 
= myrow["ID"].ToString();
            newnode.Text 
= myrow["TableName"].ToString();
            newnode.Target 
= myrow["Target"].ToString();
            newnode.NavigateUrl 
= myrow["url"].ToString();
            newnode.ImageToolTip 
= myrow["ParentID"].ToString();
            newnode.Expanded 
= bool.Parse(myrow["expanded"].ToString());
            httree.Add(newnode.Value, newnode);
        }
       
        
foreach (DataRow treerow in dtregion.Rows)
        {
            TreeNode newnode 
= (TreeNode)httree[treerow["ID"].ToString()];
            TreeNode parentnode 
= (TreeNode)httree[newnode.ImageToolTip];
         
            
if (parentnode != null)
            {
                parentnode.ChildNodes.Add(newnode);
            }
            
else
            {
                
this.TreeView1.Nodes.Add(newnode);
            }
 
        }
            AddToggle(this.TreeView1.Nodes[0]);

    }

 

    private int totalCount=0;
    
private void AddToggle(TreeNode rootNode)
    {
        
int nodeCount = 0;
        
//如果是父结点,加折叠事件
        if (rootNode.ChildNodes.Count > 0)
        {
            
int id = totalCount;
            
string para2 = "TreeView1n" + id.ToString();
            
string para3 = "TreeView1n" + id.ToString() + "Nodes";
            rootNode.NavigateUrl 
= "javascript:TreeView_ToggleNode(TreeView1_Data," + id.ToString() + "," + para2 + ",' '," + para3 + ")";
        }
        
//方法
        while (rootNode.ChildNodes.Count > nodeCount)
        {
            totalCount
++;
            AddToggle(rootNode.ChildNodes[nodeCount]);
            nodeCount
++;
        }
    }

 

相关文章

暂无评论

暂无评论...