MSSQL Login Test

public static string getConnectionString(string username, string password, string Datasource, string InitialCatalog)
{
    SqlConnectionStringBuilder sb = new SqlConnectionStringBuilder();
    sb.ApplicationName = Application.ProductName;
    sb.UserID = username;
    sb.Password = password;
    sb.Pooling = true;
    sb.MinPoolSize = 25;
    sb.MaxPoolSize = 500;
    sb.IntegratedSecurity = false;
    sb.InitialCatalog = InitialCatalog;
    sb.DataSource = Datasource;
    return sb.ConnectionString;
}