Question

I understand that Silverlight 3.0 has binding but just want a simple example on how to use this to read a property from a class.
I have a class called Appointment which as a String property called Location:

    Public Property Location() As String
        Get
            Return _Location
        End Get
        Set(ByVal Value As String)
            _Location = Value
        End Set
    End Property

With a Private Declaration for the _Location as String of course.
I want a XAML element to bind to this property to display this in a TextElement, but it must be in XAML and not code, for example I want something like this:

<TextBlock Text="{Binding Appointment.Location}"/> 

What do I need to do to get this to work?
It has to be a Silverlight 3.0 solution as some WPF features are not present such as DynamicResource which is what I’m used to using.

---

Just to add that my XAML is being loaded in from a seperate XAML File, this may be a factor in why the binding examples don’t seem to work, as there are different XAML files the same Appointment.Location data needs to be applied.

Answer 1

You have two options.

If the “Appointment” class can be used as the DataContext for the control or Window, you can do:

<TextBlock Text="{Binding Location}" />

If, however, “Appointment” is a property of your current DataContext, you need a more complex path for the binding:

<TextBlock Text="{Binding Path=Appointment.Location}" />

Full details are documented in MSDN under the Binding Declarations page. If neither of these are working, make sure you have the DataContext set correctly.