Input Data is not loading into Database : I am encountering the folowing problem:

I have a program which is supposed to load the data into a database and it is not working. No errors popping out, it just does not load. 

Here is the connection code:

    public Conexion()
            {
                string dataSource = ".\\SQLEXPRESS";
                string rutaBase = HostingEnvironment.MapPath(@"/App_Data/Database1.mdf");
                cadenaConexion = "Data Source=" + dataSource + ";AttachDbFilename=\""
                    + rutaBase + "\";Integrated Security=true;User Instance=True";
            }