Element addressing within a DataTemplate from a ContentControl

Question

How do I access an element contained in a DataTemplate that is displayed through a ContentControl. I have a ContentControl which hosts a PresentationModel along the lines of:

<ContentControl x:Name="ContentContainer"
                Content="{Binding}" 
                ContentTemplate="{Binding ContentControlTemplate, ElementName=this}"

Where "this" is the view (UserControl).

There's a DataGridControl I want to EndEdit on, so I tried this:

ContentPresenter presenter = VisualTreeHelper.GetChild(this. ContentContainer, 0) as ContentPresenter;
DataGridControl dg = this. ContentContainer.ContentTemplate.FindName("datagrid", presenter) as DataGridControl;
dg.EndEdit();

Problem is that the ContentControl has no children, maybe because of the way the content is bound?

I appreciate any help.

Answer 1

Well, you are casting the result of GetChild to a ContentPresenter. Depending on its Template, this may not be the case. I think its default template includes a Border, so your cast will return null. If you don't need it to do anything other than display the content, why not use ContentPresenter directly?