Take the following steps to start a project and to add some code that loads and displays an image on Windows Phone 7.
[XAML]
<phone:PhoneApplicationPage x:Class="LoadingAndDisplayingAnImageWindowsPhone.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768" FontFamily="{StaticResource PhoneFontFamilyNormal}" FontSize="{StaticResource PhoneFontSizeNormal}" Foreground="{StaticResource PhoneForegroundBrush}" SupportedOrientations="Portrait" Orientation="Portrait" shell:SystemTray.IsVisible="True" xmlns:my="clr-namespace:Leadtools.Windows.Controls;assembly=Leadtools.Windows.Controls" Loaded="PhoneApplicationPage_Loaded"> <!--LayoutRoot is the root grid where all page content is placed--> <Grid x:Name="LayoutRoot" Background="Transparent"> <StackPanel Orientation="Vertical"> <my:RasterImageViewer Name="rasterImageViewer" Height="600" Width="480" SizeMode="Fit" InteractiveMode="None"/> <Button Name="_btnLoadFromLibrary" Click="_btnLoadFromLibrary_Click" Content="Load From Library"></Button> <Button Name="_btnLoadFromURL" Click="_btnLoadFromURL_Click" Content="Load From URL"></Button> </StackPanel> </Grid> </phone:PhoneApplicationPage>
[C#]
using System.IO; using Leadtools; using Leadtools.Codecs;
[C#]
RasterCodecs codecs = null;
[C#]
private void _btnLoadFromURL_Click(object sender, RoutedEventArgs e) { codecs.LoadAsync(new Uri("http://demo.leadtools.com/images/cmp/IMAGE1.CMP"), null); } private void _btnLoadFromLibrary_Click(object sender, RoutedEventArgs e) { //Load from photo library PhotoChooserTask photoTask = new PhotoChooserTask(); photoTask.Completed += new EventHandler<PhotoResult>(photoTask_Completed); photoTask.Show(); } void photoTask_Completed(object sender, PhotoResult e) { if (e.TaskResult != TaskResult.OK) return; //Image has been loaded from the photo library. We now load into into a LEADTOOLS RasterImage codecs.LoadAsync(e.ChosenPhoto, null); } private void PhoneApplicationPage_Loaded(object sender, RoutedEventArgs e) { codecs = new RasterCodecs(); codecs.LoadAsyncCompleted += new EventHandler<CodecsLoadAsyncCompletedEventArgs>(codecs_LoadAsyncCompleted); } void codecs_LoadAsyncCompleted(object sender, CodecsLoadAsyncCompletedEventArgs e) { if (e.Error != null || e.Cancelled) { //Load Error Dispatcher.BeginInvoke(() => { MessageBox.Show(e.Error.Message, "Error loading file", MessageBoxButton.OK); }); return; } //Image loaded successfully Dispatcher.BeginInvoke(() => { rasterImageViewer.Image = e.Image; }); }
Build, and Run the program to test it.
Click the "Load From URL" button to load an image from a URL.
Click the "Load From Library" button to load an image from the Windows Phone photo library.
NOTE: If you encounter and "Invalid File Format" or "Feature Not Supported" exception, please refer to the topic Invalid File Format/Feature Not Supported.