Encrypt connection string in web.config

EncryptConnectionString.cs

public static class EncryptConnection
{
	public static void EncryptConnectionString(bool encrypt)
	{
		Configuration configFile = null;
		try
		{
			// Open the configuration file and retrieve the connectionStrings section.
			configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
			ConnectionStringsSection configSection = configFile.GetSection("connectionStrings") as ConnectionStringsSection;

			if ((!(configSection.ElementInformation.IsLocked)) && (!(configSection.SectionInformation.IsLocked)))
			{
				if (encrypt && !configSection.SectionInformation.IsProtected)//encrypt is false to unencrypt
				{
					configSection.SectionInformation.ProtectSection("DataProtectionConfigurationProvider");
				}

				if (!encrypt && configSection.SectionInformation.IsProtected)//encrypt is true so encrypt
				{
					configSection.SectionInformation.UnprotectSection();
				}

				//re-save the configuration file section
				configSection.SectionInformation.ForceSave = true;

				// Save the current configuration.
				configFile.Save();
			}               
		}
		catch (System.Exception ex)
		{
			throw (ex);
		}
		finally
		{
		}
	}
}