private void LadujUstawienia()
{
Properties.Settings settings = new Properties.Settings();
SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
builder.DataSource = settings.Host;
builder.InitialCatalog = settings.NazwaBazy;
builder.PersistSecurityInfo = true;
builder.UserID = settings.Login;
builder.Password = settings.Haslo;
Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
config.ConnectionStrings.ConnectionStrings["Serwis.Properties.Settings.SerwisConnectionString"].ConnectionString = builder.ConnectionString;
config.Save(ConfigurationSaveMode.Modified, true);
Properties.Settings.Default["SerwisConnectionString"] = builder.ConnectionString;
settings.Save();
}