tree.aspx.cs

很不错的公文流转系统

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 Microsoft.Web .UI .WebControls ;
using OI.DatabaseOper;
namespace OI.Manage
{
	/// <summary>
	/// Tree 的摘要说明。
	/// </summary>
	public class Tree :OI.PageBase
	{
		protected Microsoft.Web.UI.WebControls.TreeView Tv_menu;
		protected System.Web.UI.WebControls.Label LabelError;
		
		DatabaseConnect Dbc=new DatabaseConnect ();
		private void Page_Load(object sender, System.EventArgs e)
		{
			if (Session["userid"]==null)
			{
				Response.Write ("<script>alert('超时,请重新登录');top.location.href='../userpass.aspx';</script>");
				return ;
			}
			LabelError.Visible=false;
			try
			{
				if (!Page.IsPostBack )
				{
					CreateDataSource("0");
				
				}
			}
			catch
			{
			  LabelError.Visible=true;
				Response.End();
			}
		}
		　
		private void CreateDataSource(string Parentid)
		{
			string sqlstr ="  select distinct m.id, m.ModuleID,m.modulename,m.menupath,m.parentmoduleid ";
			sqlstr +=" from  models m, accounts_userroles ur,account_rolepermission rm ";
			sqlstr +=" where      m.showmenu=1 ";
			sqlstr +=" and  m.moduleid=rm.moduleid ";
			sqlstr +=" and  rm.roleid=ur.roleid ";
			sqlstr +=" and  ur.userid="+this.User.Identity.Name;
			sqlstr +=" and  parentmoduleid='"+Parentid+"'";
			sqlstr +="  order by m.ID ";
			DataSet ds=new DataSet ();
			ds=Dbc.getBinding (sqlstr,"s");
			foreach (DataRow dr in ds.Tables[0].Rows )
			{
				TreeNode node=new TreeNode ();
				node.Text =dr["modulename"].ToString ();
				node.ID =dr["moduleid"].ToString ();
//				node.ImageUrl="../images/sciencesearch.gif";
				if (dr["menupath"].ToString () !="")
				{
					node.NavigateUrl=dr["menupath"].ToString ();
					node.Target ="MainFrame";
				}
				CreateDataSource(dr["moduleid"].ToString (),ref node);
				Tv_menu.Nodes .Add(node);
			}

		}
		private void CreateDataSource (string Parentid, ref TreeNode Pnode)
		{
			string sqlstr ="   select distinct m.id, m.ModuleID,m.modulename,m.menupath,m.parentmoduleid ";
			sqlstr +=" from  models m, accounts_userroles ur,account_rolepermission rm ";
			sqlstr +=" where      m.showmenu=1 ";
			sqlstr +=" and  m.moduleid=rm.moduleid ";
			sqlstr +=" and  rm.roleid=ur.roleid ";
			sqlstr +=" and  ur.userid="+this.User.Identity.Name;
			sqlstr +=" and parentmoduleid='"+Parentid+"'";
			sqlstr +=" order by m.ID";
			DataSet ds=new DataSet ();
			ds=Dbc.getBinding (sqlstr,"s");
			foreach (DataRow dr in ds.Tables[0].Rows )
			{
				TreeNode node=new TreeNode ();
				node.Text =dr["modulename"].ToString ();
				node.ID =dr["moduleid"].ToString ();
				if (dr["menupath"].ToString () !="")
				{
					node.NavigateUrl=dr["menupath"].ToString ();
					node.Target ="MainFrame";
				}
				CreateDataSource(dr["moduleid"].ToString (),ref node);
				Pnode.Nodes .Add(node);
					
				
			}
		}

		#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

		private void check(object sender, Microsoft.Web.UI.WebControls.TreeViewClickEventArgs e)
		{

			
		 
		}

		private void Tv_menu_SelectedIndexChange(object sender, Microsoft.Web.UI.WebControls.TreeViewSelectEventArgs e)
		{
		}
	}
}