Combo Box separator

[Thomas]

I have 2 observable collections. one contains list of items. and 2one contains subitems. one item may have multiple subitems (one to many relationship)
E.g.  1st collections: 1. Animal  2. Bird  3.Vgetable
Now , in 2nd collections has sub-items

Subitem number  Subitem name    Item Number
1                             Horse                   1
2                             Elepahant            1
3                              Parrot                  2
etc...

 Now, on combo box i want to show each subitems under head of its corresponding Itemnumber.

See below.

  Animal
   -- Horse
   -- Elephant
 Bird
  --Parrot

While each item number is a separtor over here and  must be disbaled but sub-itemnumber must be enabled.

  How to achieve all these things in silverlight

[Valeri Hristov]

Hello Thomas,

Since RadComboBox has only one ItemsSource, you should merge the two collections into one, apply some kind of sort, so they appear in the correct order, then using a StyleSelector apply different styles on the "separator" items and the normal items:
http://www.telerik.com/help/silverlight/common-data-binding-style-selectors.html

Best wishes,
Valeri Hristov
the Telerik team