Ext.Net 1.x_Ext.Net.TreePanel 选择值回传父页

来源：互联网发布：秦伟平知乎编辑：程序博客网时间：2024/06/04 18:49

HTML:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Property2.aspx.cs" Inherits="DzPlatForm.CRM.Property.Property2" %><%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server">    <title>属性二选择</title>    <link rel="stylesheet" type="text/css" href="../../resources/css/main.css" />    <script type="text/javascript">        //树 单击取值主键FID        function ClickNode(node) {            if (node.hasChildNodes()) { //判断是否有子节点            }            else {                var t = node.attributes.text;                var v = node.attributes.id;                parent.txtPropertyName_2.setValue(t);                parent.txtProperty_2.setValue(v);                parent.WinCustClass.hide();            }        }    </script></head><body>    <form id="form1" runat="server"> <ext:ResourceManager ID="ResourceManager1" runat="server" />    <ext:TreePanel ID="TreePanel1" runat="server" Icon="ApplicationHome" Height="450"        Shadow="None" UseArrows="true" AutoScroll="true" Animate="true" EnableDD="true"        ContainerScroll="true" RootVisible="false">        <Root>        </Root>    </ext:TreePanel>    </form></body></html>

CS:

using System;using System.Collections.Generic;using System.Linq;using System.Data;using System.Data.SqlClient;using Ext.Net;using DzPlatForm.DBUtility;namespace DzPlatForm.CRM.Property{    public partial class Property2 : System.Web.UI.Page    {        protected void Page_Load(object sender, EventArgs e)        {            if (!X.IsAjaxRequest)            {                //读取来源数据表                string strSql = string.Format("SELECT [Id],[ParentId],[Name] FROM [CustomerClass]");                DataTable dt = new DataTable();                dt = SqlHelper.ExecuteDataset(SqlHelper.conn, CommandType.Text, strSql).Tables[0];                if (dt.Rows.Count > 0)                {                    this.BuildTree(this.TreePanel1.Root, dt);                }                else                {                    Notification.Show(new NotificationConfig                    {                        Title = "提示",                        Icon = Icon.Information,                        Html = "没有取得数据"                    });                }            }        }        /// <summary>        /// TreePanel        /// </summary>        /// <param name="allData"></param>        /// <returns></returns>        public TreeNode BindTreePanel(DataTable allData)        {            TreeNode topNode = new TreeNode();            topNode.NodeID = "0";            topNode.Text = "Root";            if (allData != null && allData.Rows.Count > 0)            {                DataRow[] items = allData.Select("ParentId=-1");                if (items != null && items.Length > 0)                {                    DataSet ds = new DataSet();                    ds.Merge(items);                    DataTable SourseTable = ds.Tables[0];                    for (int i = 0; i < SourseTable.Rows.Count; i++)                    {                        TreeNode Tvn = new TreeNode();                        Tvn.Expandable = ThreeStateBool.True;                        Tvn.NodeID = SourseTable.Rows[i]["Id"].ToString();                        Tvn.Text = SourseTable.Rows[i]["Name"].ToString();                        DataRow[] isChildNode = allData.Select("ParentId=" + SourseTable.Rows[i]["Id"].ToString());                        if (isChildNode.Length > 0)                        {                            Tvn.Icon = Icon.FolderGo;                        }                        else                        {                            Tvn.Leaf = true;                            Tvn.Icon = Icon.ApplicationViewColumns;                        }                        BindSubTreePanel(Tvn, allData, SourseTable.Rows[i]["Id"].ToString());                        Tvn.Listeners.Click.Handler = "ClickNode(node)";                        topNode.Nodes.Add(Tvn);                    }                }            }            return topNode;        }        /// <summary>        ///         /// </summary>        /// <param name="TrNode"></param>        /// <param name="allData"></param>        /// <param name="parentID"></param>        private void BindSubTreePanel(TreeNode TrNode, DataTable allData, string parentID)        {            DataRow[] items = allData.Select("ParentId=" + parentID);            if (items != null && items.Length > 0)            {                DataSet ds = new DataSet();                ds.Merge(items);                DataTable dt = ds.Tables[0];                for (int i = 0; i < dt.Rows.Count; i++)                {                    TreeNode Tvn = new TreeNode();                    Tvn.Icon = Icon.Note;                    Tvn.NodeID = dt.Rows[i]["Id"].ToString();                    Tvn.Text = dt.Rows[i]["Name"].ToString();                    DataRow[] isChildNode = allData.Select("ParentId=" + dt.Rows[i]["Id"].ToString());                    if (isChildNode.Length > 0)                    {                        Tvn.Icon = Icon.FolderGo;                    }                    else                    {                        Tvn.Leaf = true;                        Tvn.Icon = Icon.ApplicationViewColumns;                    }                    BindSubTreePanel(Tvn, allData, dt.Rows[i]["Id"].ToString());                    Tvn.Listeners.Click.Handler = "ClickNode(node)";                    TrNode.Nodes.Add(Tvn);                }            }        }        private Ext.Net.TreeNodeCollection BuildTree(Ext.Net.TreeNodeCollection root, DataTable dt)        {            root.Add(this.BindTreePanel(dt));            return root;        }    }}

效果：