itemssource

Situation: I've created a DataGrid in XAML and the ItemsSource is binded to an ObservableCollection of a certain class that contains properties. Then in C#, I create a DataGridTextColumn and a DataGridComboBoxColumn and binded these to the properties of the objects inside the ObservableCollection. I can bind the DataGridComboBoxColumn to a simple Collection but what I want to do is bind it to a collection of collections of strings so that for each row the ComboBox inside the DataGrid has a different collection of string. I have failed to do so... Question: How can I bind the

I'm having a bit of weird behavior that I can't seem to work out. When I iterate through the items in my ListBox.ItemsSource property, I can't seem to get the container? I'm expecting to see a ListBoxItem returned, but I only get null. Any ideas? Here's the bit of code I'm using: this.lstResults.ItemsSource.ForEach(t => { ListBoxItem lbi = this.lstResults.ItemContainerGenerator.ContainerFromItem(t) as ListBoxItem; if (lbi != null) { this.AddToolTip(lbi); } }); The ItemsSource is currently set to a Dictionary and does contain a number of KVPs. Phred Menyhert I found something that worked better