[原创]ASP.NET环境下完整的treeview使用类

王朝asp·作者佚名  2006-01-09
窄屏简体版  字體: |||超大  

#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

// boyorgril@msn.com

// 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

{

/// <summary>

/// menuFill 的摘要说明。

/// </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

/// <summary>

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

/// </summary>

public string sqltopMenuString

{

get{ return topMenu;}

set{ topMenu=value;}

}

/// <summary>

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

/// </summary>

public string sqlsecMenuString

{

get{ return secMenu; }

set{ secMenu=value; }

}

/// <summary>

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

/// </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

}

}

 
 
 
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