using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml;

public partial class Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Configuration config = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
 
        //操作appSettings
        AppSettingsSection appseting = (AppSettingsSection)config.GetSection("appSettings");
        appseting.Settings["web"].Value = "张三";            //修改设置
        appseting.Settings.Add("name", "张三");               //增加设置

 
        //操作connectionStrings
        ConnectionStringsSection conSection = (ConnectionStringsSection)config.GetSection("connectionStrings");
        conSection.ConnectionStrings["constr"].ConnectionString = "htttp://study.pctoday.net.cn/App_Data/zhangshan.mdb";                       //修改设置
        conSection.ConnectionStrings["constr"].ProviderName = "System.Data.OleDb";
        conSection.ConnectionStrings.Add(new ConnectionStringSettings("constr2", "bbbb", "System.Data.OleDb"));  //增加设置

        config.Save();
    }
}