Thnks Miquel,
But issue is this, when I click on any item then why it gives
error?
Thanks & Regards,
Muhammad Niaz
Software Engineer
Intagleo Systems Pvt Ltd
<http://www.intagleo.co.uk> www.intagleo.co.uk
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Miguel Madero
Sent: Saturday, November 01, 2008 8:54 PM
To: listserver@ozSilverlight.com
Subject: RE: [OzSilverlight] SL Combobox problem.?
The ObservableCollection (or any collection that implements
ICollectionChange) exposes an event (CollectionChanged) and the Databinding
will subscribe to this to monitor changes in the collection, when one occur
it will cause the control to refresh it's datasource.
This is similar to objects that implement INotifyPropertyChange, those will
expose a PropertyChanged event that will trigger an update in the UI
whenever the control value of the property changed (or more precisely when
the event is fired)
Miguel A. Madero Reyes
<http://www.miguelmadero.com/> www.miguelmadero.com (blog)
<mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
+61 (0) 406-704-161
623/243 Pyrmont Street
Pyrmont, NSW, 2009
Australia
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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Muhammad Niaz
Sent: Saturday, 1 November 2008 10:58 PM
To: listserver@ozSilverlight.com
Subject: [OzSilverlight] SL Combobox problem.?
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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