how bucket behind boldly combined settingsproperty unbroken time?

i combined proceed boldly supplement settingsproperty .net app.config file. works nicely, nonetheless i am rising app unbroken i wholly properties combined designer. i bucket behind properties runtime?

my formula formulating settingsproperty looks following:

internal vacant createproperty<t>(string propertyname)
{
    twine providername = "localfilesettingsprovider";
    system.configuration.settingsattributedictionary attributes = new settingsattributedictionary();
    system.configuration.userscopedsettingattribute attr = new userscopedsettingattribute();

    attributes.add(attr.typeid, attr);

    system.configuration.settingsproperty prop;
    settingsprovider provider = applicationenvironment.globalsettings.providers[providername];

    buttress = new system.configuration.settingsproperty(
        propertyname,
        typeof(t),
        provider,
        false,
        default(t),
        system.configuration.settingsserializeas.string,
        attributes,
        false,
        false
    );

    applicationenvironment.globalsettings.properties.add(prop);
    applicationenvironment.globalsettings.reload(); 
}

when unbroken run i ask settings ability i any properties combined previosuly. matter i applicationenvironment.globalsettings.reload(); not.