Configuration ASP.Net Tutorial

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"  Inherits="UpdateConfig" %>



    Update Configuration


    
    

             
            
             
            
             
            
             
            
             
    

    


File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Configuration;
public partial class UpdateConfig : System.Web.UI.Page
{
    protected void Button1_Click(object sender, EventArgs e)
    {
        string name = @"system.web/httpHandlers";
        string path = "/";
        Configuration appConfig = WebConfigurationManager.OpenWebConfiguration(path);
        HttpHandlersSection section = (HttpHandlersSection)appConfig.GetSection(name);
        HttpHandlerAction newHandler = new HttpHandlerAction(
            "*.xyz", "System.Web.HttpForbiddenHandler", "*");
        section.Handlers.Add(newHandler);
        appConfig.Save();
    }
    protected void Button2_Click(object sender, EventArgs e)
    {
        string name = @"system.web/httpHandlers";
        string path = "/";
        Configuration appConfig = WebConfigurationManager.OpenWebConfiguration(path);
        HttpHandlersSection section = (HttpHandlersSection)appConfig.GetSection(name);
        section.Handlers.Remove("*", "*.xyz");
        appConfig.Save();
    }
    protected void Button3_Click(object sender, EventArgs e)
    {
        string name = "connectionStrings";
        string path = "/";
        Configuration cfg = WebConfigurationManager.OpenWebConfiguration(path);
        ConnectionStringsSection section;
        section = (ConnectionStringsSection) cfg.GetSection(name);
        section.SectionInformation.ProtectSection("RsaProtectedConfigurationProvider");
        cfg.Save();
    }
    protected void Button4_Click(object sender, EventArgs e)
    {
        string name = "connectionStrings";
        string path = "/";
        Configuration cfg = WebConfigurationManager.OpenWebConfiguration(path);
        ConnectionStringsSection section;
        section = (ConnectionStringsSection)cfg.GetSection(name);
        section.SectionInformation.UnprotectSection();
        cfg.Save();
    }
    protected void Button5_Click(object sender, EventArgs e)
    {
        Response.Write(WebConfigurationManager.ConnectionStrings["LocalNWind"].ConnectionString);
    }
}