private void SolveButton_Click(object sender, EventArgs e)
{
if (b_input.Text == "...")
{
b_input.Text = "0";
b_input.ForeColor = Color.White;
}
if (c_input.Text == "...")
{
c_input.Text = "0";
c_input.ForeColor = Color.White;
}
bool success = false;
try
{
double a1 = Double.Parse(a_input.Text);
double b1 = Double.Parse(b_input.Text);
double c1 = Double.Parse(c_input.Text);
if (a_input.Text == "0")
{
throw new Exception();
}
success = true;
}
catch (Exception)
{
if (!Error_Window.errorKey)
{
Error_Window error = new Error_Window();
Error_Window.errorKey = true;
this.Controls.Add(error);
error.BringToFront();
error.Left = (this.ClientSize.Width - error.Width) / 2;
error.Top = (this.ClientSize.Height - error.Height) / 2 - 100;
error.Focus();
}
}
finally
{
if (success)
{
double a_value = Double.Parse(a_input.Text, CultureInfo.InvariantCulture);
double b_value = Double.Parse(b_input.Text, CultureInfo.InvariantCulture);
double c_value = Double.Parse(c_input.Text, CultureInfo.InvariantCulture);
double D = QESSOLVER.Discriminant(a_value, b_value, c_value);
List <object> solutions = QESSOLVER.Solutions(a_value, b_value, c_value);
List <double> extrema = QESSOLVER.Extrema(a_value, b_value, c_value);
x1Result.Text = Convert.ToString(solutions[0]);
x2Result.Text = Convert.ToString(solutions[1]);
DResult.Text = Convert.ToString(D);
TxResult.Text = Convert.ToString(extrema[0]);
TyResult.Text = Convert.ToString(extrema[1]);
}
}
this.ActiveControl = QESLabel;
}
public void CallErrorWindow()
{
if (!Error_Window.errorKey)
{
Error_Window error = new Error_Window();
Error_Window.errorKey = true;
this.Controls.Add(error);
error.BringToFront();
error.Left = (this.ClientSize.Width - error.Width) / 2;
error.Top = (this.ClientSize.Height - error.Height) / 2 - 100;
error.Focus();
}
}