I am attempting to have a simple program that will paint a rectangle or a circle dependant on the radio button selected. The drawing will change once the 'Draw' button is pressed. However I seem to be having an issue with the button, when I hover over the button the OnPaint method is triggered and you end up with both drawings on the form. Here's the code:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Part_A_Attempt_2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
protected override void OnPaint(PaintEventArgs e)
{
Pen myPen = new Pen(Color.Blue, 5);
Graphics formGraphics = this.CreateGraphics();
if (RectangleRadio.Checked)
formGraphics.DrawRectangle(myPen, new Rectangle(10, 10, 300, 200));
if (CircleRadio.Checked)
formGraphics.DrawEllipse(myPen, 10, 10, 300, 300);
myPen.Dispose();
formGraphics.Dispose();
}
private void DrawButton_Click(object sender, EventArgs e)
{
this.Invalidate();
}
