[原创]ASP.NET环境下完整的treeview使用类

#region 声明
//----------------------------------------------------------------------
//
// 作者: 李淼（Nick.Lee）
//
// ASP.NET环境下完整的treeview控件使用方案类
//
// 时间:2005-2-17
// [email protected]
// QQ:16503096
//
//----------------------------------------------------------------------
#endregion
using System;
#region 自定义命名空间(可重用)
//调用本身函数引用命名空间
using NickLee.Web.UI;
using System.Data;
#endregion

namespace NickLee.Web.UI
{
 ///

 /// menuFill 的摘要说明。
 ///

 public class menuFill
 {

  #region 类公共属性和私有属性
  webDataFill topFill=new webDataFill();
  webDataFill secFill=new webDataFill();
  webDataFill thirdFill=new webDataFill();

  private  string topMenu;
  private  string secMenu;
  private  string thirdMenu;
  #endregion

  #region 设定属性条件参数

  ///

  /// 一级菜单sql语句,例：“select * from baseData_topMenu order by topMenu_Pk;”
  ///

  public  string sqltopMenuString
  {
   get{  return topMenu;}
   set{  topMenu=value;}
  }

  ///

  /// 二级菜单sql语句,例：“select * from baseData_secMenu where topMenu_PK=”
  ///

  public  string sqlsecMenuString
  {
   get{  return secMenu; }
   set{  secMenu=value; }
  }

  ///

  /// 三级菜单sql语句,例：“select * from baseData_thirdMenu where secMenu_PK=”
  ///

  public  string sqlthirdMenuString
  {
   get{  return thirdMenu; }
   set{  thirdMenu=value; }
  }

  #endregion

  public menuFill()
  {
   //
   // TODO: 在此处添加构造函数逻辑
   //
   #region 构造函数初始定义

   topFill.ConString=System.Configuration.ConfigurationSettings.AppSettings["SqlConnectionString"];
   secFill.ConString=System.Configuration.ConfigurationSettings.AppSettings["SqlConnectionString"];
   thirdFill.ConString=System.Configuration.ConfigurationSettings.AppSettings["SqlConnectionString"];

   topFill.dataTableName="topFill";
   secFill.dataTableName="secFill";
   thirdFill.dataTableName="thirdFill";
   #endregion
  }

  #region treeview分级显示，用datareader
  /*
   *
   * private void treeviewReader()
  {
   webDataFill fil1=new webDataFill();
   webDataFill fil2=new webDataFill();
   webDataFill fil3=new webDataFill();
   fil1.ConString="server=localhost;uid=sa;pwd=sa;database=northwind;";
   fil2.ConString="server=localhost;uid=sa;pwd=sa;database=northwind;";
   fil3.ConString="server=localhost;uid=sa;pwd=sa;database=northwind;";

   fil1.sqlQueryString="SELECT CategoryID, CategoryName FROM Categories";
   fil1.sqlClientDataReader();

   while(fil1.mySqlReader.Read())
   {
    Microsoft.Web.UI.WebControls.TreeNode  topNode=new Microsoft.Web.UI.WebControls.TreeNode();
    topNode.ID=fil1.mySqlReader["CategoryID"].ToString();
    topNode.Text=fil1.mySqlReader["CategoryName"].ToString();
    TreeView1.Nodes.Add(topNode);

    fil2.sqlQueryString = "SELECT ProductID, ProductName FROM Products where categoryID="+Convert.ToInt32(fil1.mySqlReader["CategoryID"]);
    fil2.sqlClientDataReader();
    while(fil2.mySqlReader.Read())
    {
     Microsoft.Web.UI.WebControls.TreeNode   nextNode=new Microsoft.Web.UI.WebControls.TreeNode();
     nextNode.Text=fil2.mySqlReader["ProductName"].ToString();
     topNode.Nodes.Add(nextNode);

     fil3.sqlQueryString = "SELECT ProductID, ProductName FROM Products where ProductID<5";
     fil3.sqlClientDataReader();
     while(fil3.mySqlReader.Read())
     {
      Microsoft.Web.UI.WebControls.TreeNode   thirdNode=new Microsoft.Web.UI.WebControls.TreeNode();
      thirdNode.Text=fil3.mySqlReader["ProductID"].ToString();
      thirdNode.CheckBox=true;
      // thirdNode.NavigateUrl=fil3.mySqlReader["ProductID"].ToString();
      nextNode.Nodes.Add(thirdNode);
     }
     fil3.mySqlReader.Close();
     fil3.mySqlConnection.Close();
    }
    fil2.mySqlReader.Close();
    fil2.mySqlConnection.Close();
   
   }
   fil1.mySqlReader.Close();
   fil1.mySqlConnection.Close();

  }
  */
  
  #endregion

 }
}