Maybe I'm missing something.... but, the PropertyEditor in the Designer
doesn't seem to pick up a UserControl's underlying (default) property
values.
I've tried....
- Using DefaultValue Attribute
- Passing through the value of a property of a contained control
- Using private member variable
- Using ViewState... and all sorts of ViewState and Private member
combinations.

....even always hardcoding a value as the Return of the property.

Seems the design-time support for UserControls is still crappy. Why is this
so hard?

Not to mention that there is NO designer support for (creating)
CompositeControls (why not?)

P.S. Seems to me that the ASP.NET team needs to do away with the declarative
"Classic ASP"-esque paradigm cobbled together with code-behind and go for a
*truly* code generated paradigm. That way.... EVERYTHING is a "WebControl"
or a "CompositeControl" instead of the hybrid mess that we have today. They
need to woo some developers from the WinForms team to show them how to do
it.

GridViewRow.DataItem is null
Checkbox items under a RadioButton
DataList and Event not fired
issue: accessing value of dropdownlist in a user control
Add additional navigation buttons to wizard control
.Net Menu controls
Video capture control in asp.net 2.0
Enabled="False"
imagefield in gridview
How well is a performance of a Menu Control