Question

TextBox, Label, Panel, … all inherits from Control.

Is there a way to inherit from Control and make ASP.NET controls inherit from my new control?

For example, I have a control

public class SpecialControl : Control
{
    public string Something { get; set; }
}

Now I want all controls to inherit from it, so

<asp:TextBox ID="tb" runat="server" Something="hello" />

Would be valid.

Answer 1

You can’t change the inheritance chain of the controls that are part of the BCL.