Question

I have placed a textblock in a slider thumb by Template editing. I want its value to be changed dynamically but the problem is I cant access that text box from code behind.

Any Solutions??

Answer 1

if you give the TextBlock a name, you could use VisualTreeExtensions.GetVisualDescendants() to search the visual tree until you find the element with the name and type you’re looking for.

For example:

using System.Linq;
using System.Windows.Controls.Primitives;

Slider slider = new Slider();
TextBlock tb = slider.GetVisualDescendants().OfType<TextBlock>().First();

You’ll need to have a reference to the Silverlight Toolkit, namely System.Windows.Controls.Toolkit.dll