加密配置节

 protected void Button1_Click(object sender, EventArgs e)
{
Configuration config = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
ConfigurationSection appSettings = config.GetSection("connectionStrings");
if (appSettings.SectionInformation.IsProtected)
{
appSettings.SectionInformation.UnprotectSection();
lblInfo.Text = "配置节已解密！";
}
else
{
appSettings.SectionInformation.ProtectSection( "DataProtectionConfigurationProvider");
Button1.Text = "解密";
lblInfo.Text = "已加密配置节！";
}
config.Save();
}