Question

How to draw a random filled rectangle with random colors in C# Windows Forms Application

Answer 1

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

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        Random rand = new Random();

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            SolidBrush brush = new SolidBrush(Color.FromArgb(rand.Next(0, 255),
                                                             rand.Next(0, 255),
                                                             rand.Next(0, 255)));

            Graphics graphics = this.CreateGraphics();

            int x = rand.Next(10, 50);
            int y = rand.Next(10, 50);

            int width = rand.Next(250, 350);
            int height = rand.Next(100, 250);

            graphics.FillRectangle(brush, new Rectangle(x, y, width, height));

            brush.Dispose();
            graphics.Dispose();
        }
    }
}

 

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