Загрузка данных


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 WindowsFormsApp5
{
    public partial class Form1 : Form
    {
        int[] w, x, y, h;
        Color[] color;
        private Random rand = new Random();
        public Form1()
        {
            InitializeComponent();
            this.ClientSize = new Size(800, 600);

            w = new int[50];
            x = new int[50];
            y = new int[50];
            h = new int[50];
            color = new Color[50];
        }


        private void Form1_Load(object sender, EventArgs e)
        {
            for (int i = 0; i < 50; i++)
            {
                w[i] = rand.Next(20, 150);
                h[i] = rand.Next(20, 150);
                x[i] = rand.Next(0, this.ClientSize.Width - w[i]);
                y[i] = rand.Next(0, this.ClientSize.Height - h[i]);
                color[i] = Color.FromArgb(rand.Next(255), rand.Next(255), rand.Next(255));
            }
        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            for (int i = 0; i < 50; i++) 
            { 
                Brush brush = new SolidBrush(color[i]);
                g.FillRectangle(brush, x[i], y[i], w[i], h[i]);
            }
        }
    }
}