动态生成左侧菜单

[杨友山]

做asp.net搞得头都晕了，那位大侠有动态生成左侧菜单的啊，菜单所需内容已从数据库中读出，并保存到Session中了，这怎么动态生成啊，网上说的我都晕了！！！

[杨友山]

菜单只有两级

[md5e]

拼接HTML代码输出

[子夜__]

源码 DEMO

[rodgerluo]

1、在后台用html拼接，做好逻辑处理后，在赋值到页面的一个控件
2、把数据显示到页面，在页面里面用javascrpt去错逻辑处理，然后在显示出来

[随心录123]

下载

这个级联菜单里面有权限 左边的 就是 自动生成的。

[YnSky]

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class SetManage_druclass : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
InitTreeView(null, 0);
}
}
public void InitTreeView(TreeNode pNode, int parentID)
{
DataSet ds = new DataSet();//这里调用数据库获取数据源
TreeNode node;
if (ds != null && ds.Tables[0].Rows.Count > 0)
{
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
node = new TreeNode();
//节点名称
node.Text = ds.Tables[0].Rows[i]["CATEGORY_NAME"].ToString();
//节点ID
int currID = 0;
int.TryParse(ds.Tables[0].Rows[i]["CATEGORY_ID"].ToString(), out currID);
//判断是不是根节点
if (pNode == null)
this.TreeView1.Nodes.Add(node);
else
pNode.ChildNodes.Add(node);
//递归调用
InitTreeView(node, currID);
}
}
}
}

[红魔大卫]

使用JSON+JQUERY 很方便的

虽然我不会用

但是我以前研究过一点

觉得这东西很好

楼主不妨尝试一下

有助于你技术的提高

[TohkinZhu]

左侧菜单树是把？Jquery TreeTable

[翘楚时代]

问什么不用XML呢？为什么一定要放在session中呢？迷惑。。。。动态生成XML菜单文件，用时直接读取就可以了。

[x363961461]

一步步来，建议搞懂原理。 写个静态菜单出来，然后照着嵌入

[Name_456]

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using DAL;
using Model;
using System.Data.OleDb;
using System.Drawing;
using System.Drawing.Imaging;
using System.Data.SqlClient;
using System.Collections.Generic;

public partial class zzyCountImage : System.Web.UI.Page
{
LxCountDAL lxCountDAl = new LxCountDAL();
LxCountDAL Dal = new LxCountDAL();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
IList<t_xzqhModel> model = Dal.getsi();

for (int i = 0; i < model.Count; i++)
{
string dicName = model[i].Mc.ToString();

string dicId = model[i].Dm.ToString();

TreeNode treefather = CreateTreeNode(dicName, dicId);
CreateChileNode(dicId, dicId, treefather);
TreeView1.Nodes.Add(treefather);
}

}
}

/// <summary>
/// 得到数据
/// </summary>
/// <param name="NodeName">父节点名称</param>
/// <param name="NodeValue">节点value</param>
/// <returns></returns>
public TreeNode CreateTreeNode(string NodeName, string NodeValue)
{
TreeNode treenode = new TreeNode();
treenode.Text = NodeName;
treenode.Value = NodeValue;
treenode.ImageUrl = "images/folder.png";
treenode.NavigateUrl = "ZzyImage.aspx?Dm=" + NodeValue;
treenode.Target = "a2";
return treenode;
}
/// <summary>
/// 得到父节点的子节点
/// </summary>
/// <param name="NodeId"></param>
/// <param name="TreeFather"></param>
/// <returns></returns>
public void CreateChileNode(string NodeId, string dm, TreeNode TreeFather)
{
IList<t_xzqhModel> model = Dal.getXzqh("" + NodeId.Substring(0, 4) + "", dm);
TreeNode treenode = new TreeNode();
for (int i = 0; i < model.Count; i++)
{
string dicName = model[i].Mc.ToString();
string dicId = model[i].Dm.ToString();
TreeNode childNode = CreateTreeNode(dicName, dicId);
AddTree(TreeFather, childNode);
childNode.ImageUrl = "images/file.png";
treenode.NavigateUrl = "ZzyImage.aspx?Dm=" + dicId;
treenode.Target = "a2";
}
TreeView1.ExpandDepth = 0;
}

/// <summary>
/// 将子节点加入父节点
/// </summary>
/// <param name="fatherNode">父节点</param>
/// <param name="chlidNode">子节点</param>
private void AddTree(TreeNode fatherNode, TreeNode chlidNode)
{
fatherNode.ChildNodes.Add(chlidNode);
}


protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
{
TreeNode treenode = new TreeNode();
treenode.NavigateUrl = "ZzyImage.aspx?Dm=" + TreeView1.SelectedNode.Value;
treenode.Target = "a2";
}


}