I have a UserControl with some predefined controls (groupbox,button,datagridview) on it, these controls are marked as protected and the components variable is also marked as
By the looks of it, DataListView (and some other controls) do not support visual inheritance. There's a connect issue logged here which doesn't look hopeful.
There have been similar issues logged with other form controls, e.g. flowlayoutpanel.
I'm unable to find a way to force visual inheritance.
Here's the official answer on connect: "For this particular release, the DataGridView was not designed to be used in visual intheritance. We will keep your suggestion in mind when we plan our future release" That is of 26/05/2006.
Update: found this blog post which may have the answer
Edit: I was unable to verify the blog post's claims. Looks like might be the latest on this issue
It looks like you can still manipulate the DataListView at runtime though, so you might be able to set visual properties (and other settings). It's not a great compromise.