opttree.aspx.cs

毕业设计时做的,一个管理关于污染管理的, 源代码,呵呵 想想当时还真厉害,可以实现污染检测

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 gyit.Data;
using System.Configuration;
using Microsoft.Web.UI.WebControls;
namespace itcrm.dialog
{
	/// <summary>
	/// optTree 的摘要说明。
	/// </summary>
	public class optTree : System.Web.UI.Page
	{
		public DBOperator db;
		public string str;
		protected System.Web.UI.WebControls.TextBox txtReturn;
		protected Microsoft.Web.UI.WebControls.TreeView TreeView1;
		DataSet ds;
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (!IsPostBack)
			{
				db = DBOperator.CreateObject((string)ConfigurationSettings.AppSettings["DSN"]);
				string vNodes=Request["id"];
				if(vNodes!="")
					vNodes=vNodes.Replace("'","");
				CreateDataSet(vNodes);
				str ="0";
				InitTree(TreeView1.Nodes,str);
			}
		}
		private DataSet CreateDataSet(string who)
		{
			string SQLstr;
			switch (who)
			{
				case "optNodes":
						SQLstr="select * from SysMenu where NodeID like '"+str+"%' order by NodeID";
					break;
				case "optLine":
					SQLstr="select * from line";
					break;
				case "optSpaceNodes":
					SQLstr="select * from v_AreaAndSpace";
					break;
				case "optArea":
					SQLstr="select AreaID as NodeID,AreaName as NodeName,ParentID from Area";
					break;
				case "optSpace":
					SQLstr="select SpaceID as NodeID,SpaceName as NodeName,ParentID from Space";
					break;
				default:
					SQLstr="select * from  SysMenu";
					break;
			}
			//Response.Write(SQLstr);
			db.Open();
			//if (str=="0")
			//	SQLstr="select * from  SysMenu";
			//else
			//	SQLstr="select * from SysMenu where NodeID like '"+str+"%' order by NodeID";

			ds=db.exeSqlForDataSet( SQLstr);
			db.Close();
			return ds;
		}
		//建树的基本思路是：从根节点开始递归调用显示子树 
		private void InitTree(TreeNodeCollection Nds,string parentID)
		{
			DataView dv=new DataView();
			TreeNode tmpNd;
			string intID;
			dv.Table=ds.Tables[0];
			dv.RowFilter="ParentID='" + parentID + "'";
			foreach(DataRowView drv in dv)
			{
				tmpNd=new TreeNode();
				tmpNd.ID=drv["NodeID"].ToString();
				tmpNd.Text="("+drv["NodeID"].ToString()+")"+drv["NodeName"].ToString();
				tmpNd.ImageUrl="../images/node.gif";
				//tmpNd.NavigateUrl="optTree.aspx?id='"+drv["NodeID"].ToString()+"'";
				//if (drv["URLPath"].ToString().Trim()!="")	
					tmpNd.NavigateUrl="javascript:getNodeID('"+drv["NodeID"].ToString()+"');";
				Nds.Add(tmpNd);
				intID=drv["ParentID"].ToString();
				InitTree(tmpNd.Nodes,tmpNd.ID);
			}
		}

		#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
	}
}