Mega Code Archive
Binding an Emoticon object to a Grid
<![CDATA[
<UserControl x:Class='SilverlightApplication3.MainPage'
xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'
xmlns:x='http://schemas.microsoft.com/winfx/2006/xaml'
xmlns:d='http://schemas.microsoft.com/expression/blend/2008'
xmlns:mc='http://schemas.openxmlformats.org/markup-compatibility/2006'
mc:Ignorable='d'
d:DesignWidth='640' d:DesignHeight='480'>
<Grid x:Name="LayoutRoot" Background="White">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBlock Text="Name:" />
<TextBlock Text="Image:" Grid.Column="1" />
<TextBox Text="{Binding Name, Mode=TwoWay}" Grid.Row="1" />
<Image x:Name="myImage" Source="{Binding Icon}" Grid.Row="1" Grid.Column="1" />
</Grid>
</UserControl>
//File: Page.xaml.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
namespace SilverlightApplication3
{
public partial class MainPage : UserControl
{
public MainPage()
{
InitializeComponent();
Emoticon emoticon = new Emoticon("Smiley Face", "http://server.com/smiley.png");
LayoutRoot.DataContext = emoticon;
}
}
public class Emoticon : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
private string name = string.Empty;
public string Name
{
get { return name; }
set
{
name = value;
UpdateProperty("Name");
}
}
private BitmapImage icon = null;
public BitmapImage Icon
{
get { return icon; }
set
{
icon = value;
UpdateProperty("Icon");
}
}
public Emoticon(string _name, string _imageUrl)
{
name = _name;
icon = new BitmapImage(new Uri(_imageUrl));
}
public void UpdateProperty(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
}
]]>