Question

How to draw and fill a rectangle with random x, y and color in WPF C#

Answer 1

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Drawing;
using System.Windows.Shapes;

namespace WpfApplication1
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            Rectangle rect;
            Random rnd = new Random();
            Color c;
                
            rect = new System.Windows.Shapes.Rectangle();
            
            c = Color.FromArgb((byte)rnd.Next(0, 255), (byte)rnd.Next(0, 255), (byte)rnd.Next(0, 255), 
                               (byte)rnd.Next(0, 255));
            rect.Stroke = new SolidColorBrush(c);
            c = Color.FromArgb((byte)rnd.Next(0, 255), (byte)rnd.Next(0, 255), (byte)rnd.Next(0, 255), 
                               (byte)rnd.Next(0, 255));
            rect.Fill = new SolidColorBrush(c);
            rect.Width = rnd.Next(200, 500);
            rect.Height = rnd.Next(50, 300);
            rect.StrokeThickness = rnd.Next(1, 5); ;
            Canvas.SetLeft(rect, rnd.Next(0, 100));
            Canvas.SetTop(rect, rnd.Next(0, 100));
            canvas.Children.Add(rect);
        }
    }
}

<Canvas Width="500" Height="250" Name="canvas" Grid.Row="1" Grid.Column="0"></Canvas>

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