/// <summary>
/// Updates the date range, datacenter, and pipeline from the querystring, then serializes the information for the
/// DataCenter Heat Map.
/// </summary>
/// <returns>JSON Object that stores the each network, their percentages, their farms, and the farm percentages</returns>
public string getNetworkFarm()
{
rel.ChangeDate(Convert.ToDateTime(Request.QueryString["start"]), Convert.ToDateTime(Request.QueryString["end"]));
rel.ChangeDataCenter(Request.QueryString["datacen"]);
rel.ChangePipeline(Request.QueryString["pipeline"]);
return(JsonConvert.SerializeObject(rel.CalculateDataCenterHeatMap(), Formatting.Indented));
}