asp.net treeView动态增加、编辑、删除

Question

RT..能否点击父节点或叶节点后,进行标题上的操作.希望能有个实例供我参考

Answer 1

http://download.csdn.net/source/1413899

Answer 2

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using MyContent.Model;
using MyContent.BLL;
using System.Collections.Generic;public partial class admin_dianpu_DianpuTypeManager : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            if (Request.QueryString.Count != 0)
            {
                int id = Convert.ToInt32(Request.QueryString["id"].ToString());
                Leixing tp = LeixingManager.GetLeixingById(id);
                this.txtName.Text = tp.Tname;
            }
            BindTypeBig();
            ShowTreeView();
        }
    }
    //填充dropdownlist行业类型
    public void BindTypeBig()
    {
        IList<Leixing> comps = LeixingManager.GetAllLeixingByTid(0);
        this.ddlAllType.Items.Add("请选择");
        foreach (Leixing compt in comps)
        {
            ListItem item = new ListItem();
            item.Value = compt.Tid.ToString();
            item.Text = compt.Tname;
            this.ddlAllType.Items.Add(item);
        }
    }
    //填充TreeVView
    public void ShowTreeView()
    {
        IList<Leixing> lists = LeixingManager.GetAllLeixingByTid(0);
        foreach (Leixing item in lists)
        {
            //创建父节点
            TreeNode father = this.CreateTreeNode(item.Tname, item.Tid.ToString(), "DianpuTypeManager.aspx?id=" + item.Tid, "images/OpenTree.gif");
            CreateChildNode(item.Tid, father);
            this.tvProductType.Nodes.Add(father);
        }
    }
    //创建子节点
    public void CreateChildNode(int typeId, TreeNode fatherNode)
    {
        IList<Leixing> lists = LeixingManager.GetAllLeixingByTid(typeId);
        foreach (Leixing item in lists)
        {
            TreeNode child = this.CreateTreeNode(item.Tname, item.Tid.ToString(), "DianpuTypeManager.aspx?id=" + item.Tid, "images/OpenTree.gif");
            CreateChildNode(item.Tid, child);
            AddTree(fatherNode, child);
        }
    }
    //把子节点加入父节点
    private void AddTree(TreeNode father, TreeNode child)
    {
        father.ChildNodes.Add(child);
    }
    //创建树的节点
    public TreeNode CreateTreeNode(string name, string id, string url, string img)
    {
        TreeNode node = new TreeNode();
        node.Text = name;
        node.Value = id;
        node.NavigateUrl = url;
        node.ImageUrl = img;
        return node;
    }
    protected void btnUpdate_Click(object sender, EventArgs e)
    {
        if (this.ddlAllType.Text == "请选择")
        {
            if (this.txtName.Text.Trim() == "")
            {
                ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('修改时，类型名不能为空！'),window.location='DianpuTypeManager.aspx'", true);
                //Response.Write("<script> alert('修改时，类型名不能为空！');location='DianpuTypeManager.aspx';</script>");
            }
            else if (this.txtName.Text.Trim() != "")
            {
                int id = Convert.ToInt32(Request.QueryString["id"].ToString());//获取所选的节点ID
                if (LeixingManager.UpdateLeixingByNameAndId(this.txtName.Text.Trim().ToString(), id) > 0)
                {
                    ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('修改成功！'),window.location='DianpuTypeManager.aspx'", true);
                    //Response.Write("<script> alert('修改成功！');location='DianpuTypeManager.aspx';</script>");
                }
                else
                {
                    ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('修改失败！'),window.location='DianpuTypeManager.aspx'", true);
                    //Response.Write("<script> alert('修改失败！');location='DianpuTypeManager.aspx';</script>");
                }
            }
        }
        else
        {
            if (this.txtName.Text.Trim() == "")
            {
                ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('修改时，类型名不能为空！'),window.location='DianpuTypeManager.aspx'", true);
                //Response.Write("<script> alert('修改时，类型名不能为空！');location='DianpuTypeManager.aspx';</script>");
            }
            else if (this.txtName.Text.Trim() != "")
            {
                int id = Convert.ToInt32(Request.QueryString["id"].ToString());//获取所选的节点ID
                int parentId = Convert.ToInt32(this.ddlAllType.SelectedValue.ToString());
                if (LeixingManager.UpdateLeixingByParentIdAndId(parentId, id) > 0)
                {
                    ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('修改成功'),window.location='DianpuTypeManager.aspx'", true);
                    //Response.Write("<script> alert('修改成功！');location='DianpuTypeManager.aspx';</script>");
                }
                else
                {
                    ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('修改失败！'),window.location='DianpuTypeManager.aspx'", true);
                    //Response.Write("<script> alert('修改失败！');location='DianpuTypeManager.aspx';</script>");
                }
            }
        }        
    }
    protected void btnDelete_Click(object sender, EventArgs e)
    {
        if (Request.QueryString["id"].ToString() == null)
        {
            ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('删除时：请选择删除项！'),window.location='DianpuTypeManager.aspx'", true);
            //Response.Write("<script> alert('删除时：请选择删除项！');location='DianpuTypeManager.aspx';</script>");
        }
        else
        {
            int id = Convert.ToInt32(Request.QueryString["id"].ToString());//获取所选的节点ID
            if (LeixingManager.GetAllLeixingByTid(id).Count != 0)
            {
                ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('请查看相关链接，再行删除'),window.location='DianpuTypeManager.aspx'", true);
                //Response.Write("<script>alert('请查看相关链接，再行删除');location='DianpuTypeManager.aspx';</script>");
            }
            else
            {
                if (LeixingManager.DeleteLeixingByID(id) > 0)
                {
                    ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('删除成功！'),window.location='DianpuTypeManager.aspx'", true);
                    //Response.Write("<script> alert('删除成功！');location='DianpuTypeManager.aspx';</script>");
                }
                else
                {
                    ScriptManager.RegisterClientScriptBlock(Page, this.GetType(), "", "alert('删除失败！'),window.location='DianpuTypeManager.aspx'", true);
                    //Response.Write("<script> alert('删除失败！');location='DianpuTypeManager.aspx';</script>");
                }
            }
        }
        
    }
    
}
这是我之前做的一个例子 ，你看看 希望能构帮助你   记得给分哦！

Answer 3

选择treeview节点seletedindexchange中显示数据修改保存
  protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
    {
        if (this.TreeView1.SelectedNode != null)
        {
            string XTBH = this.TreeView1.SelectedNode.Value.Trim();
            if (this.TreeView1.SelectedNode.Value.Trim() != "0")
            {
                this.Hd_XTBH.Value = XTBH;
                DataSet ds = this.GetJgxx(XTBH, false);
                if (ds.Tables[0].Rows.Count > 0)
                {
                    txtbmmc.Text = ds.Tables[0].Rows[0]["jigmc"].ToString();
                    txtbmbh.Text = ds.Tables[0].Rows[0]["jigbh"].ToString();
                }
            }
            else
            {
                txtbmbh.Text = "";
                txtbmmc.Text =TreeView1.SelectedNode.Text.Trim();
            }
        }
    }