bmgz/TREE_cp.aspx.cs

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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 System.Configuration;
using System.Data.SqlClient;
using System.Text;
using Microsoft.Web.UI.WebControls;

namespace GZGL.bmgz
{
	/// <summary>
	/// TREE_cp 的摘要说明。
	/// </summary>
	public class TREE_cp : System.Web.UI.Page
	{
		protected Microsoft.Web.UI.WebControls.TreeView TreeView1;
		SqlConnection myConn;
		SqlConnection mConn;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			string conStr = ConfigurationSettings.AppSettings["sqlConn"];
			myConn = new SqlConnection(conStr);
			if(!IsPostBack)
			{
				AddRootTreeNode();  
			}
			RetainScrollPosition();
		}

		protected void RetainScrollPosition() 
		{ 
			StringBuilder saveScrollPosition =new StringBuilder (); 
			StringBuilder setScrollPosition =new StringBuilder (); 
			this.RegisterHiddenField ("__SCROLLPOS","0"); 
			saveScrollPosition.Append("<script language='javascript'>") ; 
			saveScrollPosition.Append("function saveScrollPosition() {") ; 
			saveScrollPosition.Append(" document.forms[0].__SCROLLPOS.value = thebody.scrollTop;") ; 
			saveScrollPosition.Append("}") ; 
			saveScrollPosition.Append("thebody.onscroll=saveScrollPosition;") ; 
			saveScrollPosition.Append("</script>") ; 
			RegisterStartupScript("saveScroll", saveScrollPosition.ToString()) ; 

			if(Page.IsPostBack ) 
			{ 
				setScrollPosition.Append("<script language='javascript'>") ; 
				setScrollPosition.Append("function setScrollPosition() {") ; 
				setScrollPosition.Append(" thebody.scrollTop = " + Request["__SCROLLPOS"] + ";") ; 
				setScrollPosition.Append("}") ; 
				setScrollPosition.Append("thebody.onload=setScrollPosition;") ; 
				setScrollPosition.Append("</script>") ; 
				RegisterStartupScript("setScroll", setScrollPosition.ToString()) ;