Question

I have been looking for a way to do this for a while.
What I have is a textbox and on textchanged event I want it to filter as you type and highlight parts of the result as when you search in the people’s hub.
.

Answer 1

public ObservableCollection<Item> SearchResult 
                  { 
               get {return //...} 
               set {//set an raise property changed event}
                 }
private list <Item> _allItems = //populate items list here

In textChanged event handler do the following:

 var filteredList = _allItems.Where(item.TextPropetry.Contains(enteredText))
                    .ToList();
 SearchResult = new ObservableCollection<Item>(filteredList);

That is about filtering.

The way to hilight depends on you UI implementation.

upd:

 Color currentAccentColorHex = 
        (Color)Application.Current.Resources["PhoneAccentColor"];

More about colors here.