Question

How can use this text value?

Text="My custom text: {Binding MyData}"

In this code?

<TextBlock x:Name="lbl_data" Foreground="Black" TextWrapping="Wrap" 
 Margin="50,39,130,0" FontSize="13.333" FontFamily="Segoe WP Light" 
 VerticalAlignment="Top" Height="26" 
 Text="My custom text: {Binding MyData}" 
/>

thanks.

Answer 1

You can write a Converter and pass in the Parameter MyData

If it was Silverlight 4.0 you can inherently use Value Converter like this

<Button Content={Binding MyData, StringFormat='My Custom Text \{0\}'}/>

Also Refer Question : Binding with StringFormat on Windows Phone 7?