[OzSilverlight] SL Combobox problem.?

[Muhammad Niaz]

Hi All,

 

       I have a Combobox in SL App when I remove item from the collection
(ObservableCollection<UserDTO>/List< UserDTO >) work fine,  but the issue
that Combobox not update its items-Containing area when its bind with
ObservableCollection, mean if there were 4 items in Combobox then will
remain 3 but total space of items-Containing remain 4. And but when its bind
to List<> then it only delete the item from collection but not from Combobox
area, mean if there were 4 items in Combobox then will remain even 4.

why, here is some code:

 

XAML:

<ComboBox x:Name="ddlUser" Canvas.ZIndex="2" Grid.Row="0" Grid.Column="1"

                      DisplayMemberPath="name"

                      ToolTipService.ToolTip="Select user."
Style="{StaticResource NormalDropDownListStyle}" />

CS:

private ObservableCollection<UserDTO> resultUserDTO = new
ObservableCollection<UserDTO>();

private List<UserDTO> resultUserDTO = new List<UserDTO>();

 

 

 

also why should I use List<> over ObservableCollection.?

Enen though I call this like,

ddlUser.UpdateLayout();

ddlUser.SelectedItem = innerUserDTO;

 

Thanks & Regards,

Muhammad Niaz

Software Engineer

Intagleo Systems Pvt Ltd

www.intagleo.co.uk


 




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