//on selecting one of the values from the listbox, this method is called.
//It a)populates the Tseries list b)calls the loadmodels() method c) calls the populatedatagridview() method
private void ARCHlb_SelectedValueChanged(object sender, EventArgs e)
{
System.Windows.Forms.Cursor old = this.Cursor;
this.Cursor = Cursors.AppStarting;
Tseries.Clear();
int position = ARCHlb.SelectedIndex;
if (position == -1)
{
this.Cursor = old;
return;
}
string curItem = Tab[position];
string df = Flocations[position];
string f = ";Extended Properties=\"Excel 12.0;HDR=NO\"";
string c = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + df + f;
string interim1 = Fnames[position].Replace(".xlsx", "");
string interim2 = Tab[position].Replace("$", "");
string interim3 = Flocations[position].Replace(fnames[position], interim1 + interim2 + ".csv");
int counter = 0;
string line1;
string line2;
string line3;
double t = 0;
double tscale = 0;
try
{
StreamReader sr = new StreamReader(interim3);
while (counter < 1)
{
line1 = sr.ReadLine();
line2 = sr.ReadLine();
line3 = sr.ReadLine();
bool tf = Double.TryParse(line2, out t);
bool tfscale = Double.TryParse(line3, out tscale);
if (line1 == "Iterative")
{
this.Type = "Iterative";
this.Transform = t;
this.Transformscale = 0;
}
if (line1 == "Weibull")
{
this.Type = "Weibull";
this.Transform = t;
this.Transformscale = tscale;
}
counter++;
}
}
catch
{
}
DataSet data = new DataSet();
OleDbConnection con = new OleDbConnection(c);
DataTable dataTable = new DataTable();
string query = string.Format("SELECT * FROM [{0}]", curItem);
OleDbDataAdapter adapter = new OleDbDataAdapter(query, con);
try
{
con.Open();
adapter.Fill(dataTable);
data.Tables.Add(dataTable);
int m = 0, n = 0;
m = data.Tables[0].Rows.Count;
n = dataTable.Columns.Count;
this.R = m;
this.C = n;
int q = 0, r = 0;
try
{
for (q = 0; q < m; q++)
{
for (r = 0; r < n; r++)
{
double d = (double)data.Tables[0].Rows[q].ItemArray[r];
Tseries.Add(d);
}
}
}
catch (Exception x)
{
MessageBox.Show("No data in the underlying tab. Error:" + x.Message);
}
}
catch (Exception ex)
{
MessageBox.Show("The listbox selection did not work. Error: " + ex.Message);
}
finally
{
con.Close();
Modellist.Clear();
this.loadmodels(position);
if (Modellist.Count() == 0)
{
hide();
string message = "No ARIMA models relating to this data set have been found.\nPlease go back to ARIMA section, run the models and save output.";
string caption = "ARIMA Models";
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result;
result = MessageBox.Show(message, caption, buttons);
}
else
{
populatedatagridview();
this.P = new Statistics(Tseries);
}
this.Cursor = old;
}
}
//this method is called once the user chooses a tab from the listbox
//it (a) loads the time series data (b) calls the Hookup method which will produce a number of graphs and summary statistics c) saves a copy of the underlying data to a CSV file
private void explrlb_SelectedValueChanged(object sender, EventArgs e)
{
System.Windows.Forms.Cursor old = this.Cursor;
this.Cursor = Cursors.AppStarting;
//clear any data that may already be in the Tseries object
Tseries.Clear();
int position = explrlb.SelectedIndex;
//protects in the event that the user selectes a blank line
if (position == -1)
{
this.Cursor = old;
return;
}
//otherwise proceed as normal
string curItem = Tab[position];
string df = Flocations[position];
string f = ";Extended Properties=\"Excel 12.0;HDR=NO\"";
string c = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + df + f;
DataSet data = new DataSet();
OleDbConnection con = new OleDbConnection(c);
//var
DataTable dataTable = new DataTable();
string query = string.Format("SELECT * FROM [{0}]", curItem);
OleDbDataAdapter adapter = new OleDbDataAdapter(query, con);
try
{
con.Open();
adapter.Fill(dataTable);
data.Tables.Add(dataTable);
explrdgv1.AutoGenerateColumns = true;
explrdgv1.DataSource = data.Tables[0];
string s = data.Tables[0].TableName;
explrdgv1.AllowUserToAddRows = false;
explrdgv1.MultiSelect = false;
explrdgv1.ReadOnly = true;
//now we populate Tseries
int m = 0, n = 0;
m = data.Tables[0].Rows.Count;
n = dataTable.Columns.Count;
this.R = m;
this.C = n;
int q = 0, r = 0;
try
{
for (q = 0; q < m; q++)
{
for (r = 0; r < n; r++)
{
double d = (double)data.Tables[0].Rows[q].ItemArray[r];
Tseries.Add(d);
}
}
//call the HookUpData method which will assist with the production of charts etc
HookUpData();
}
catch (Exception x)
{
explrForm_hide();
MessageBox.Show("No data in the underlying tab. Error:" + x.Message);
}
}
catch (Exception ex)
{
MessageBox.Show("The listbox selection did not work. Error: " + ex.Message);
}
finally
{
con.Close();
this.Cursor = old;
//save down a CSV copy of the underlying data in case the user wants it
curItem = curItem.Replace("'", "");
curItem = curItem.Replace("$", "");
string p = curItem + ".csv";
string q = df.Replace(".xlsx", p);
StreamWriter sw = new StreamWriter(q, false);
sw.WriteLine("Data");
foreach (double d in Tseries)
{
sw.WriteLine(d);
}
sw.Close();
}
}
