protected void CalculateTriangle(object sender, EventArgs e)
{
TypeOfTriangle.Text = "";
Area.Text = "";
var x = Convert.ToInt32(FirstSide.Text);
var y = Convert.ToInt32(SecondSide.Text);
var z = Convert.ToInt32(ThirdSide.Text);
Scalene scalene = new Scalene();
Isosceles isosceles = new Isosceles();
Equilateral equilateral = new Equilateral();
var abs = System.Math.Abs(x - y); // absolute value of substruction
//third point's value must be with in the range of difference of the other sides to the total of the other sides,
if (!(z > abs && z < x + y))
{
TypeOfTriangle.Text = "These are not valid values to draw a triangle!";
CalculateButton.Enabled = false;
}
else
{
TypeOfTriangle.Text = "Triangle is valid.";
CalculateButton.Enabled = true;
}
}
private void button2_Click(object sender, EventArgs e)
{
t = new Isosceles(a2, angle2);
if (a2 > 0 && angle2 > 0 && angle2 < 180)
{
textBox10.Text = Convert.ToString(t.Area());
textBox9.Text = Convert.ToString(t.Perimeter());
}
else
{
textBox10.Text = "Нет данных";
textBox9.Text = "Нет данных";
}
}
static void Main(string[] args)
{
Triangulo t;
t = new Escaleno();
t.a = 3;
t.b = 4;
t.c = 5;
Console.WriteLine(t);
t = new Isosceles();
t.a = t.b = 2;
t.c = 1;
Console.WriteLine(t);
t = new Equilatero();
t.a = t.b = t.c = 1;
Console.WriteLine(t);
Console.ReadKey();
}
