Can only bind ItemsSource to IEnumerable in XAML

2 replies. Latest Post by atm_grifter on July 25, 2008.

(0)

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8 points

Can only bind ItemsSource to IEnumerable in XAML

07-23-2008 4:38 PM |

Since no one has responded to the following thread in the Controls forum, http://silverlight.net/forums/t/20873.aspx, I figured I'd go ahead and report this behavior as a bug.

To summarize in Silverlight you are not able to bind the ItemsSource of an ItemsControl to a collection that is any type other than IEnumerable, including types that implement IEnumerable. So, you can't bind to List<T> or ObservableCollection<T>. This seems like a glaring omission.

Yi-Lun L...

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25052 points

2,747 Posts

Re: Can only bind ItemsSource to IEnumerable in XAML

07-25-2008 1:51 AM |

Hello, thanks for reporting this issue. It looks similar to a known problem. TemplateBinding doesn't work for collection types. Note this only affects TemplateBinding. In a normal binding it should work fine. The data source can be any kind of collections. So a workaround is:

public override void OnApplyTemplate()
{
base.OnApplyTemplate();
ItemsControl ic = this.GetTemplateChild("ic") as ItemsControl;
if (ic != null)
{
Binding b = new Binding("TestCollection");
b.Source = this;
ic.SetBinding(ItemsControl.ItemsSourceProperty, b);
}
}

shanaolanxing - I'll transfer to the Windows Azure team, and will have limited time to participate in the Silverlight forum. Apologize if I don't answer your questions in time.

atm_grifter

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8 points

28 Posts