Visual Inheritance - How to make public inherited properties private or readonly?

[Michael.Suarez]

Let's say I create a custom component that inherits from TextBox. Then
I set the color of the textbox. Now I want it so that anyone who uses
this component can not change the color. How do i make it so that the
BackColor property is no longer able to be set (either at runtime or
design time) for my new custom text box?

 

[Paul E Collins]

Let's say I create a custom component that inherits
from TextBox. Then I set the color of the textbox.
Now I want it so that anyone who uses this component
can not change the color.

You can't "hide" a base class' public member, as it would defeat the
point of polymorphism. Perhaps you can override OnBackColorChanged and
immediately set the colour back to what it was before.

Eq.

 

[Bruce Wood]

Paul is right: you can't _completely_ hide the BackColor property, but
perhaps this might work for you:

private new Color BackColor
{
get { return base.BackColor; }
set { base.BackColor = value; }
}

If you just want it hidden in the property browser at design time, but
not hidden in code, you can do this:

[Browsable(false)]
public override Color BackColor
{
get { return base.BackColor; }
set { base.BackColor = value; }
}