Question

How to draw a box with random x, y and colors with Windows Forms in C#

Answer 1

using System;
using System.Drawing;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Random rnd = new Random();

            Color c = Color.FromArgb(rnd.Next(0, 255), rnd.Next(0, 255), rnd.Next(0, 255));
            SolidBrush solidbrush = new SolidBrush(c);
            
            int x, y, w, h;
            
            x = y = rnd.Next(100); 
            w = h = rnd.Next(8, 130);

            Graphics g;

            g = this.CreateGraphics();
            g.FillRectangle(solidbrush, new Rectangle(x, y, w, h));

            solidbrush.Dispose();
            g.Dispose();
        }
    }
}

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