The Unit Test of Silverlight Applications with Asynchronous Service Callbacks

<UserControl xmlns:sdk="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"  x:Class="SilverlightApplication.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" FontFamily="Verdana" FontSize="12"
    d:DesignHeight="300" d:DesignWidth="400">

    <Grid x:Name="LayoutRoot" Margin="10" Background="White">
        <Grid.RowDefinitions>
            <RowDefinition Height="auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        
        <Grid Grid.Row="0">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="*" />
            </Grid.ColumnDefinitions>
            
            <Button Grid.Column="0" Content="Get 10 students from WCF"
                    Command="{Binding Path=GetStudentWCFCommand}"
                    Margin="5,0,0,5"/>
            <Button Grid.Column="1" Content="Get 10 students from wrong method in WCF"
                    Command="{Binding Path=GetStudentWCFWrongMethodCommand}"
                    Margin="5,0,0,5"/>
        </Grid>
        
        <sdk:DataGrid Margin="0, 8, 0, 0" Grid.Row="1"
                      ItemsSource="{Binding Path=StudentList}"/>
    </Grid>
</UserControl>