Codigo en C#
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace SchoolEnrolment1
{
public partial class Form1 : Form
{
float Graduates;
float Undergraduates;
float Certificates;
public Form1()
{
InitializeComponent();
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
pbxChart.CreateGraphics().DrawEllipse(new Pen(Color.Red),new Rectangle(0, 0, 260, 260));
pbxChart.CreateGraphics().DrawPie(new Pen(Color.Blue),0.0F, 0.0F, 260.0F, 260.0F, 0.0F, Graduates);
pbxChart.CreateGraphics().DrawPie(new Pen(Color.Green),0.0F, 0.0F, 260.0F,260.0F, Graduates, Undergraduates);
pbxChart.CreateGraphics().DrawPie(new Pen(Color.Fuchsia),0.0F, 0.0F, 260.0F,260.0F, Graduates + Undergraduates,Certificates);
e.Graphics.DrawEllipse(new Pen(Color.Blue),new Rectangle(lblGraduates.Left,lblGraduates.Top + 20,lblUndergraduates.Width,20));
e.Graphics.DrawEllipse(new Pen(Color.Green),new Rectangle(lblUndergraduates.Left,lblUndergraduates.Top + 20,lblUndergraduates.Width,20));
e.Graphics.DrawEllipse(new Pen(Color.Fuchsia),new Rectangle(lblCertificates.Left,lblCertificates.Top + 20,lblUndergraduates.Width,20));
}
private void pbxChart_Paint(object sender, PaintEventArgs e)
{
Invalidate();
}
private void btnCreateChart_Click(object sender, EventArgs e)
{
float grad = 0.00F,under = 0.00F,cert = 0.00F,total = 0.00F;
float percentGraduates,
percentUndergraduates,
percentCertificates;
try
{
grad = float.Parse(txtGraduates.Text);
}
catch (FormatException)
{
MessageBox.Show("Valor en grados inválidos");
}
try
{
under = float.Parse(txtUndergraduates.Text);
}
catch (FormatException)
{
MessageBox.Show("Valor en grados inválidos");
}
try
{
cert = float.Parse(txtCertificates.Text);
}
catch (FormatException)
{
MessageBox.Show("Valor en grados inválidos");
}
//formula matemática
total = grad + under + cert;
percentGraduates = (grad / total) * 100;
percentUndergraduates = (under / total) * 100;
percentCertificates = (cert / total) * 100;
Graduates = (360 * percentGraduates) / 100;
Undergraduates = (360 * percentUndergraduates) / 100;
Certificates = (360 * percentCertificates) / 100;
pbxChart.Invalidate();
}
}
}