How to get the binding UI to see my Objects in VS 2010

Question

I have a Silverlight object (call it QuestionAsker.xaml) and another object I use as the data context for that silver light page/object (call it QuestionAskerVM.cs) My QuestionAskerVM instance is called QuestionAskerViewModel and is defined in QuestionAsker.xaml.cs.

My QuestionAsker.xaml looks like this:

<UserControl x:Class="IsAProgrammer.QuestionAsker"
    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:DesignHeight="364" d:DesignWidth="470"
    DataContext="{Binding QuestionAskerViewModel}">

    <Grid x:Name="LayoutRoot" Background="White">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height=".2*" />
            <RowDefinition Height=".7*" />
            <RowDefinition Height=".1*" />
        </Grid.RowDefinitions>
        <TextBlock Grid.Row="0" Margin="5"  Text="{Binding CurrentQuestion.QuestionText}"/>
    </Grid>                                    ^
</UserControl>                                 |
                                               |
This is the most relevant line ----------------+

That works just fine. The value of QuestionText gets put in the TextBlock. (Note that CurrentQuestion is a Dependancy Property and that QuestionAskerVM is a Dependancy Object.)

The problem is that Visual Studio 2010 has a binding feature (in the properties pane). I click on the little binding icon and it says "Apply Binding".

After I click on that then I get the binding dialog. It has "DataContext - Object" as the first first item in the Source but for my path it says that my Path Could not be Resolved.

What can I do so that Visual Studio 2010 recognizes my Objects.