Question

I have a class that desccends from ListviewItem.

When I create an instance of this class, I assign to the instance some properties inherited from its ancestor, ListViewItem.

However, the EnsureVisible property is problematic.

If I do this:

base.EnsureVisible = true;

…I get, “Cannot assign to ‘EnsureVisible’ because it is a ‘method group'”

..and if I do this:

base.EnsureVisible(true);

…I get, “No overload for method ‘EnsureVisible’ takes 1 arguments”

The name of the property makes it sound useful, but how can I use it?

Answer 1

The problem you’re seeing is that EnsureVisible is a no-argument method and not a property. It has the following signature

public virtual void EnsureVisible();

You can’t assign a value to it. Calling the method itself forces the item to become visible (or at least requests it)