Question

I’m working on a class that is derived from the UserControl class. This class adds the attributes [Browsable(false)] and [EditorBrowsable(EditorBrowsableState.Never)] to the event TextChanged which is inherited from the Control class.

My new control is comparable to a TabPage; it is used inside of another class that is comparable to the TabControl. The reason this is important is because it means that I need the user of the control to be able to access this event. In .NET reflector, we see that the TabPage control (which inherits from Panel, which also adds these two attributes) “overrides” these two attributes with the following code:

[Browsable(true), EditorBrowsable(EditorBrowsableState.Always)]
public event EventHandler TextChanged;

I copied this into my project, and as far as I can tell it works correctly, but the compiler gives me a warning: “‘System.Windows.Forms.Frameset.FunctionPanel.TextChanged’ hides inherited member ‘System.Windows.Forms.UserControl.TextChanged’. Use the new keyword if hiding was intended.”. I do not want to hide the old TextChanged event; I just want to remove the Browsable(false) attribute. While hiding the old event seems to get the job done on the surface, it seems like an ugly and roundabout way of doing it. Is there a way to do this without hiding the old event? And if not, is there a way to get the compiler to stop giving me a warning for it?

Thanks in advance,
Brandon

Answer 1

You can try the following. It should be safe in all the possible situations:

    [Browsable(true), EditorBrowsable(EditorBrowsableState.Always)]
    public new event EventHandler TextChanged {
        add {
            base.TextChanged += value;
        }
        remove {
            base.TextChanged -= value;
        }
    }