Programmatically manipulating web.config (ASP. NET 2.0/3.5) and App.config

The following lines of code changes the appSetting section "DEFAULT_LANGUAGE" and
refreshes the current page (causes re-load of the entire web as we modify the Web.config)

using System.Web.Configuration;
using System.Configuration;



private AppSettingsSection section;

protected void btnSave_Click(object sender, EventArgs e)
{


Configuration config= WebConfigurationManager.OpenWebConfiguration("~");
section = (AppSettingsSection)config.GetSection("appSettings");
section.Settings["DEFAULT_LANGUAGE"].Value ="some language";
config.Save();

Response.Redirect(Request.Url.ToString());

}

For windows applications code is listed below.


System.Configuration.Configuration config =ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

config.AppSettings.Settings["oldPlace"].Value = "3";
config.Save(ConfigurationSaveMode.Modified);
ConfigurationManager.RefreshSection("appSettings");

Happy Coding...!

samitha