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GetItemsAndContainers method returns no items in the DropDownOpened event

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ComboBox

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Scott asked on 23 Feb 2012, 06:42 AM

This problem occurs with the latest 2012 Q1 release.

If I use the Silverlight toolkit extension method GetItemsAndContainers (System.Windows.Controls.Toolkit.dll) in the DropDownOpened event, the first time this event fires I get 0 items back from this call. It occurs if you bind an IEnumerable to ItemsSource or even explicitly declare strings inside RadComboBoxItem tags.

private void RadComboBox_DropDownOpened(object sender, EventArgs e)

{

RadComboBox rcb = (RadComboBox) sender;

IEnumerable<KeyValuePair<object, DependencyObject>> itemsContainers = rcb.GetItemsAndContainers();

RunOpenCount.Text = itemsContainers.Count().ToString();

}

This worked in 2011 Q3 and quite a few prior releases too.

Here is the solution showing the problem: http://dl.dropbox.com/u/15525269/ComboBoxIssue.zip

GetItemsAndContainers method returns no items in the DropDownOpened event

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