ptype_tree.aspx.cs

b to b 模式 电子商务系统

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

using System.Data.SqlClient;
using System.Configuration ;

using Microsoft.Web.UI.WebControls;

namespace B2Bsite.admin
{
	/// <summary>
	/// 显示所有的分类
	/// </summary>
	public class PType_tree : System.Web.UI.Page
	{
        protected Microsoft.Web.UI.WebControls.TreeView TreeView1;
        protected Microsoft.Web.UI.WebControls.TreeView TreeBiew1;

        public SqlConnection conn=new SqlConnection(ConfigurationSettings.AppSettings["ConnStr"]);
    
		private void Page_Load(object sender, System.EventArgs e)
		{
            if(!IsPostBack)
            {
                String sql="SELECT * FROM PType";
                SqlDataAdapter myAdapter = new SqlDataAdapter(sql,conn);
                DataSet ds = new DataSet();
                myAdapter.Fill(ds,"Category");
                InitTree(ds,TreeView1.Nodes,"0");
            }
		}

        private void InitTree(DataSet ds,TreeNodeCollection Nds,string parentId)
        {
            DataRow[] rows = ds.Tables[0].Select("parentId=" + parentId);

            foreach(DataRow row in rows)
            {
                TreeNode tmpNd = new TreeNode();
                tmpNd.ID = row["category_ID"].ToString();
                tmpNd.Text = row["category_name"].ToString();
                
                tmpNd.NavigateUrl = "PType_alter.aspx?categoryid=" + row["category_ID"].ToString();
                Nds.Add(tmpNd);
                InitTree(ds,tmpNd.Nodes,row["category_ID"].ToString());
            }
        }

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
            this.Load += new System.EventHandler(this.Page_Load);

        }
		#endregion
	}
}