When do we need to use [Browsable(true)]?

Question

When do we need to use [Browsable(true)]?

EDIT (by SLaks): He's asking (I assume) why one would need to pass true as the parameter, given that it's already true by default.

Answer 1

As far as I know, never.

EDIT

I was wrong.
It's necessary if you want to make a property which has [Browsable(false)] in your base class (such as UserControl.Text) browsable.

Answer 2

MSDN says it all:

Specifies whether a property or event should be displayed in a Properties window.

For example, if you're creating a User Control, you might want to decorate non-UI-related properties with [Browsable(false)] so that they will not be available through a "Properties" window.

Additionally, it controls which properties of an object can be seen in a PropertyGrid.

As for why we can pass true explicitly, I believe this is due to BrowsableAttributes property of a PropertyGrid. You can set it to contain BrowsableAttribute.No, so that the property grid will display all non-browsable members.