在C#代码里使用IE WEB Control TreeView
2024-07-21 02:26:48
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/*
*description:完全的操作xml文件
*auther:mingziweb_天很蓝
*email:[email protected]
*dates:22004-09-10
*copyright:chongchong2008 yichang hubei china
*/
.aspx
<％@ register tagprefix="ie" namespace="microsoft.web.ui.webcontrols" assembly="microsoft.web.ui.webcontrols" ％>
<％@ page language="c#" codebehind="treeview.aspx.cs" autoeventwireup="false" inherits="test.webform1" ％>
<!doctype html public "-//w3c//dtd html 4.0 transitional//en" >
<html>
<head>
<title>webform1</title>
<meta name="generator" content="microsoft visual studio .net 7.1">
<meta name="code_language" content="c#">
<meta name="vs_defaultclientscript" content="javascript">
<meta name="vs_targetschema" content="http://schemas.microsoft.com/intellisense/ie5">
</head>
<body ms_positioning="gridlayout">
<form id="form1" method="post" runat="server">
<font face="宋体">
<ie:treeview id="mytreeview"
runat="server"></ie:treeview></font>
</form>
</body>
</html>
.cs
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.data.sqlclient;
using system.configuration;
using microsoft.web.ui.webcontrols;
namespace test
{
/// <summary>
/// webform1 的摘要说明。
/// </summary>
public class webform1 : system.web.ui.page
{
protected microsoft.web.ui.webcontrols.treeview mytreeview;
private sqlconnection myconnection = new sqlconnection(configurationsettings.appsettings["strconn"]);
#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 page_load(object sender, system.eventargs e)
{
// 在此处放置用户代码以初始化页面
treenode mytreenoderoot = addtreenoderoot();
appendchild(mytreenoderoot);
}
private treenode addtreenoderoot()
{
treenode mytreenode = new treenode();
mytreenode.id = "420000";
mytreenode.expanded = true;
mytreenode.target = "";
mytreenode.text = "我的社区";
mytreeview.nodes.add(mytreenode);
return mytreenode;
}
private treenode addsubnode(treenode subtreenode)
{
treenode mytreenode = new treenode();
mytreenode.id = "00001";
mytreenode.expanded = true;
mytreenode.target = "";
mytreenode.text = "省份";
mytreenode.navigateurl = "" ;
subtreenode.nodes.add(mytreenode);
return mytreenode;
}
private void appendchild(treenode mytreenode)
{
treenode mysubnode = addsubnode(mytreenode);
if(getclasstable().rows.count>0)
{
datatable mydatatable = new datatable();
mydatatable = getclasstable();
for(int i=0;i<mydatatable.rows.count;i++)
{
treenode mytreenodesub = new treenode();
mytreenodesub.checkbox=true;
if(i==20)
{
mytreenodesub.checked=true;
}
mytreenodesub.id = mydatatable.rows[i]["class_code"].tostring();
mytreenodesub.expanded = false;
mytreenodesub.target = "body";
mytreenodesub.text = mydatatable.rows[i]["class_name"].tostring();
mytreenodesub.navigateurl = "doclist.aspx?doccatalogguid=" + mydatatable.rows[i]["class_code"].tostring();
mysubnode.nodes.add(mytreenodesub);
appendchildren(mytreenodesub);
}
}
}
private void appendchildren(treenode mytreenode)
{
if(getsubclasstable(mytreenode.id).rows.count>0)
{
datatable mydatatable = new datatable();
mydatatable = getsubclasstable(mytreenode.id);
for(int i=0;i<mydatatable.rows.count;i++)
{
treenode mytreenodesub = new treenode();
mytreenodesub.checkbox=true;
mytreenodesub.id = mydatatable.rows[i]["subclass_code"].tostring();
mytreenodesub.expanded = false;
mytreenodesub.target = "body";
mytreenodesub.text = mydatatable.rows[i]["subclass_name"].tostring();
mytreenodesub.navigateurl = "doclist.aspx?doccatalogguid=" + mydatatable.rows[i]["class_code"].tostring();
mytreenode.nodes.add(mytreenodesub);
appendchildren(mytreenodesub);
}
}
}
private datatable getclasstable()
{
//绑定drpmc_code
string strsql="select * from [class] order by id desc";
openconnection();
sqldataadapter mycommand = new sqldataadapter(strsql,myconnection);
dataset ds= new dataset();
mycommand.fill(ds);
closeconnection();
return ds.tables[0];
}
private datatable getsubclasstable(string class_code)
{
//绑定drpmc_code
string strsql="select * from [subclass] where [email protected]_code order by id desc";
openconnection();
sqldataadapter mycommand = new sqldataadapter(strsql,myconnection);
mycommand.selectcommand.commandtype=commandtype.text;
mycommand.selectcommand.parameters.add("@class_code",sqldbtype.nvarchar,10).value=class_code
;
dataset ds= new dataset();
mycommand.fill(ds);
closeconnection();
return ds.tables[0];
}
/// <summary>
/// 打开数据库连接
/// </summary>
private void openconnection()
{
if (myconnection.state == connectionstate.closed)
myconnection.open();
}
/// <summary>
/// 关闭数据库连接
/// </summary>
private void closeconnection()
{
if (myconnection.state == connectionstate.open)
myconnection.close();
}
}
}
