public bool downloadEMA(string folderPath, string scriptName, bool bIsTestOn, bool bSaveData)
{
string interval = ddlEMA_Interval.SelectedValue;
string period = textboxEMA_Period.Text;
string series = ddlEMA_Series.SelectedValue;
if (StockApi.getEMA(folderPath, scriptName, day_interval: interval, period: period, seriestype: series, bIsTestModeOn: bIsTestOn, bSaveData: bSaveData, apiKey: Session["ApiKey"].ToString()) == null)
{
Response.Write("<script language=javascript>alert('EMA data not available for selected script.')</script>");
return(false);
}
return(true);
}
public void ShowGraph(string scriptName)
{
string folderPath = Server.MapPath("~/scriptdata/");
bool bIsTestOn = true;
DataTable scriptData = null;
DataTable tempData = null;
string expression = "";
string period = "";
string seriestype = "";
string interval = "";
string fromDate = "", toDate = "";
DataRow[] filteredRows = null;
if (ViewState["FetchedData"] == null)
{
if (Session["IsTestOn"] != null)
{
bIsTestOn = System.Convert.ToBoolean(Session["IsTestOn"]);
}
if (Session["TestDataFolder"] != null)
{
folderPath = Session["TestDataFolder"].ToString();
}
if ((Request.QueryString["period"] != null) && (Request.QueryString["interval"] != null) && (Request.QueryString["seriestype"] != null))
{
interval = Request.QueryString["interval"];
period = Request.QueryString["period"].ToString();
seriestype = Request.QueryString["seriestype"].ToString();
scriptData = StockApi.getEMA(folderPath, scriptName, day_interval: interval, period: period,
seriestype: seriestype, bIsTestModeOn: bIsTestOn, bSaveData: false);
}
ViewState["FetchedData"] = scriptData;
}
else
{
if (ViewState["FromDate"] != null)
{
fromDate = ViewState["FromDate"].ToString();
}
if (ViewState["ToDate"] != null)
{
toDate = ViewState["ToDate"].ToString();
}
if ((fromDate.Length > 0) && (toDate.Length > 0))
{
tempData = (DataTable)ViewState["FetchedData"];
expression = "Date >= '" + fromDate + "' and Date <= '" + toDate + "'";
filteredRows = tempData.Select(expression);
if ((filteredRows != null) && (filteredRows.Length > 0))
{
scriptData = filteredRows.CopyToDataTable();
}
}
else
{
scriptData = (DataTable)ViewState["FetchedData"];
}
}
if (scriptData != null)
{
////time,Real Lower Band,Real Middle Band,Real Upper Band
///
(chartEMA.Series["seriesEMA"]).XValueMember = "Date";
(chartEMA.Series["seriesEMA"]).XValueType = ChartValueType.Date;
(chartEMA.Series["seriesEMA"]).YValueMembers = "EMA";
//(chartEMA.Series["seriesEMA"]).ToolTip = "EMA: Date:#VALX; Value:#VALY";
chartEMA.ChartAreas["chartareaEMA"].AxisX.Title = "Date";
chartEMA.ChartAreas["chartareaEMA"].AxisX.TitleAlignment = System.Drawing.StringAlignment.Center;
chartEMA.ChartAreas["chartareaEMA"].AxisY.Title = "Value";
chartEMA.ChartAreas["chartareaEMA"].AxisY.TitleAlignment = System.Drawing.StringAlignment.Center;
//chartEMA.Titles["titleEMA"].Text = $"{"Exponential Moving Average- "}{scriptName}";
if (chartEMA.Annotations.Count > 0)
{
chartEMA.Annotations.Clear();
}
chartEMA.DataSource = scriptData;
chartEMA.DataBind();
}
}