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    <p><a href="https://stackoverflow.com/questions/980120/finding-control-within-wpf-itemscontrol">This SO article</a> describes how you can select the container of an item in an ItemsControl and navigate the tree to select the item you want to alter (in this case focusing it).</p> <p>Revising my code from below:</p> <pre><code>public void WhateverMethodForShowingBusy () { //Get a reference to your View FrameworkElement myView = this.View; // I generally have a reference to the view living on the ViewModel set at construction time // Get a reference to your ItemsControl - in this example by name ListBox custListBox = myView.ListBoxName; // Get the currently selected Item which will be a CustomerViewModel // (not a DataTemplate or ListBoxItem) CustomerViewModel cvm = custListBox.SelectedItem; //Generate the ContentPresenter ContentPresenter cp = custListBox.ItemContainerGenerator.ContainerFromItem(cvm) as ContentPresenter; //Now get the button and focus it. Button myButton = cp.FindName("MyButtonName"); myButton.Focus(); } </code></pre> <h2>The information below is incorrect based on the mistake that IsFocused was a read/write property that would set focus. It is not applicable.</h2> <p>This is another place where MVVM really works well. If you are unfamiliar with MVVM I would highly suggest looking into it. It solves a lot of problems like this and if implemented properly it can make your code much more maintainable.</p> <p>If you are using an MVVM approach, just host a boolean property (we'll call it IsFocused) on the ViewModel that is sitting behind the DataTemplate. For example we have a Customer class, a CustomerViewModel class which contains an instance of customer, and then your MainViewModel which contains a collection of CustomerViewModels. Your ItemsControl's ItemsSource property is bound to the CustomerViewModels collection, and the DataTemplate button's IsFocused property is bound to the IsFocused property on the CustomerViewModel.</p> <p>I am unsure of your workflow, but you can essentially do something like so:</p> <pre><code>public void WhateverMethodForShowingBusy () { //Get a reference to your View FrameworkElement myView = this.View; // I generally have a reference to the view living on the ViewModel set at construction time // Get a reference to your ItemsControl - in this example by name ListBox custListBox = myView.ListBoxName; // Get the currently selected Item which will be a CustomerViewModel // (not a DataTemplate or ListBoxItem) CustomerViewModel cvm = custListBox.SelectedItem; //Finally set the property. cvm.IsFocused = true; } </code></pre> <p>As with all things in MVVM, be sure that you are implementing INotifyPropertyChanged.</p>
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    1. POUnable to focus a button that resides in a DataTemplate
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    1. COthere is no direct property for isfocused , you would have to do extra work here that you aren't mentioning, you would have to create a custom dependency property IsFocused and either attach it to the button or create special inherited control to use with your viewmodel
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    2. COWhoops. My Bad. That is a read only property.
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    3. COMy scenario is just a control with a data template. Not a list. I've tied it with just a stack panel as well to no avail. It seems to have something to do with the container's initial status being collapsed. If the panel is visible first it works with no problems. We changed it to always be visible with a 0 height in the "hidden" state but that feels dirty.
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