using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace AspNetTest.Common
{
/**////
/// tree_DataTable 的摘要说明。
/// public class tree_DataTable : System.Web.UI.Page
{
private DataTable dtPowerTree = new DataTable();
const string tablename = "tree";
private void Page_Load(object sender, System.EventArgs e)
{
FillTreeDataTable();
blTreeDataTable(0);
dtPowerTree.Clear();
// 在此处放置用户代码以初始化页面
}
private void FillTreeDataTable()
{
string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"];
SqlConnection conn = new SqlConnection(ConnectionString);
SqlDataAdapter da = new SqlDataAdapter("select Id,PowerName,Layer,ParentId from " + tablename, conn);
da.Fill(dtPowerTree);
}
private void blTreeDataTable(int _ParentId)
{
string filter = "ParentId=" + _ParentId;
string sort = "Id ASC";
DataRow[] drs = dtPowerTree.Select(filter, sort);
for(int i=0; i
{
if(Convert.ToInt32(drs[i][3]) == _ParentId)
{
int Id = Convert.ToInt32(drs[i][0]);
string PowerName = drs[i][1].ToString();
int Layer = Convert.ToInt32(drs[i][2]);
for(int space=1; space<=Layer; space++)
{
Page.Response.Write(" ");
}
Page.Response.Write(PowerName + "
");
blTreeDataTable(Id);
}
}
}
Web 窗体设计器生成的代码#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);
}
/**////
/// 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。
///
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}