RE: [OzSilverlight] SL Combobox SelectedItem ?

[Miguel Madero]

Make sure that the object is already in the ItemsSource. The combo can only
select items that are part of the collection they're bound to. 

 

ddl.DataContext = MyCollection;                              // or
dll.ItemsSource

ddl.SelectedItem = new MyClass();                         // Won't work
because MyClass is not part of the collection

ddl.SelectedItem = MyCollection[0];                       // J

 

The order is also important so this won't work either. 

ddl.SelectedItem = MyCollection[0];                       // J

ddl.DataContext = MyCollection;                              // or
dll.ItemsSource

 

Similarly in XAML if you're databinding the properties

<Combo               SelectedItem={Binding SomeProperty} 

                                DataContext={Binding SomeCollection}/>

 

This won't work because it will try to get the SelectedItem first and then
bind the items, just as in the previous C# example

This will do the trick

<Combo               DataContext={Binding SomeCollection}

SelectedItem={Binding SomeProperty} />

 

 

 

 

 

 Miguel A. Madero Reyes

  <http://www.miguelmadero.com/> www.miguelmadero.com (blog)
  <[EMAIL PROTECTED]> [EMAIL PROTECTED] 
 +61 (0) 406-704-161

 623/243 Pyrmont Street 
 Pyrmont, NSW, 2009

 Australia

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From: [EMAIL PROTECTED] [EMAIL PROTECTED]
On Behalf Of Muhammad Niaz
Sent: Friday, 31 October 2008 2:55 AM
To: listserver@ozSilverlight.com
Subject: [OzSilverlight] SL Combobox SelectedItem ?

 

Hi All,

         I am working on MS Combox in SL App,

  But I have an issue, like ddlMediatype.SelectedItem =
(ContentTypeDTO)innerContentTypeDTO;

Mean I have no success to set SelectedItem through code.

 

 

Any details sample code or Article, in which if there are multiple
Comboboxes on each change other reflects. ;)

 

Thanks & Regards,

Muhammad Niaz

Software Engineer

Intagleo Systems Pvt Ltd

www.intagleo.co.uk

 

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