[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
{
///

1<summary>   
2/// menuFill 的摘要说明。   
3/// </summary>

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

///

1<summary>   
2/// 一级菜单sql语句,例：“select * from baseData_topMenu order by topMenu_Pk;”   
3/// </summary>

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

///

1<summary>   
2/// 二级菜单sql语句,例：“select * from baseData_secMenu where topMenu_PK=”   
3/// </summary>

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

///

1<summary>   
2/// 三级菜单sql语句,例：“select * from baseData_thirdMenu where secMenu_PK=”   
3/// </summary>

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

}
}