Do Contention Rate rises with more locks in C# code?

Consider below code.
    public partial class _Default : System.Web.UI.Page     {         private static string count = "0";         protected void Page_Load(object sender, EventArgs e)         {             lock (count)             {                 int tempCount;                 if (int.TryParse(count, out tempCount))                 {                   &nb ...