XAML: Update binding when changing DataContext

Question

I have a simple XAML file, it contains a Label whose Foreground property contains a binding:

<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" Width="200" Height="100" >
    <Label Content="Sampletext" Foreground="{Binding Path=Color}" />
</Grid>

When I load the template and apply a DataContext the Foreground still has the default value. Is it possible to get bound foreground value without rendering the Grid?

// Load template
string templatePath = "/WpfApplication1;component/Template.xaml";
Grid grid = Application.LoadComponent(new Uri(templatePath, UriKind.Relative)) as Grid;

// Set dataContext
grid.DataContext = new { Color = Brushes.Green };

// Foregound still has default value
var foreground = ((Label)grid.Children[0]).Foreground;

Project can be downloaded here: http://dl.dropbox.com/u/21096596/WpfApplication1.zip

Answer 1

try

lblName.GetBindingExpression(Label.ForegroundProperty).UpdateTarget();

before

var foreground = ((Label)grid.Children[0]).Foreground;