Image

How can we render a picture in a WPF program? With an Image control, we display bitmaps of all types, including PNG and JPG. Other forms of images (drawings) are even supported.

To begin, please create a WPF project and drag the Image control to your Window. Now edit the XAML markup for the Image element. Add a Loaded event handler by typing "Loaded".

In Image_Loaded, we want to assign the Source property of the Image object. We first create a BitmapImage object. We then assign the Source property to the BitmapImage reference.

<Window x:Class="WpfApplication11.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Image
            HorizontalAlignment="Left"
            Height="100"
            Margin="10,10,0,0"
            VerticalAlignment="Top"
            Width="100"
            Loaded="Image_Loaded"/>
    </Grid>
</Window>
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Imaging;

namespace WpfApplication11
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void Image_Loaded(object sender, RoutedEventArgs e)
        {
            // ... Create a new BitmapImage.
            BitmapImage b = new BitmapImage();
            b.BeginInit();
            b.UriSource = new Uri("c:\\plus.png");
            b.EndInit();

            // ... Get Image reference from sender.
            var image = sender as Image;
            // ... Assign Source.
            image.Source = b;
        }
    }
}

For simple shapes, consider Ellipse or Rectangle. These are easier to use than Image, but only support simple visual effects. A shape (or Image) can also be transformed with RenderTransform.

Programs tend to be composed of simple parts. The Image type is also composed of simple parts. With it, we display pictures and other graphics—with a minimum of custom code.