private void button2_Click(object sender, EventArgs e)
{
int period;
if(!int.TryParse(textBox1.Text, out period))
MessageBox.Show("Число років прогнозування має бути цілим");
IForecast lineFc;
if (count[0] < count[1])
lineFc = new LiniarForecast();
else
lineFc = new LiniarDownForecast();
double[] _years;
double[] _counts;
lineFc.MakeForecast(years, count, out _years, out _counts, period );
string[] lables = new string[_years.Length];
for (int i = 0; i < _years.Length; i++)
{
lables[i] = string.Format("{0}", _years[i]);
}
double[] bars = new double[_counts.Length];
double[] forecastyears = new double[_counts.Length];
for (int i = _counts.Length - period; i < _counts.Length; i++)
{
forecastyears[i] = _years[i];
bars[i] = _counts[i];
}
zedGraphControl1.GraphPane.XAxis.Scale.TextLabels = lables;
zedGraphControl1.GraphPane.AddBar("Лінійний прогноз", forecastyears, bars, Color.FromArgb(100, 12, 22, 200));
zedGraphControl1.GraphPane.AddCurve("Лінійний прогноз", _years, _counts, Color.BlueViolet);
zedGraphControl1.AxisChange();
zedGraphControl1.Refresh();
}