Design Time support for custom ASP.Net controls

[onyxring]

I'm reposting this, because I had a bit of difficulty last time and think
that it might have fallen through the cracks. If I'm posting to the wrong
groups, please let me know. Surely someone has some experience with this...

I've been building custom web controls in C# with VS2005. Currently I'm
looking into adding design-time functionality and have reached a point where
I need to generate code in the page the custom control is on. Enter the
CodeDomSerializ er class.

I've found several examples creating Designer Serializers, nearly all of
them for windows forms, but a few claiming to work for Web Controls;
however, I have been singularly unsuccessful at every attempt to modify
source code during the design-time experience. Clearly I'm doing something
wrong, but what it is escapes me.

Below is a sample of the technique I've been using, scaled down to the
barest minimum and excluding designers and other things you might expect for
a custom control. It appears to me that this should work, though adding this
"newtest" control to a page clearly does not add the comment expected.

Can anyone add some clarity at to what I'm doing wrong? Thank you in
advance.

-Jim Fisher

/--/begin sample code....
namespace testcontrol {
[DesignerSeriali zer(typeof(newt est_serializer) ,
typeof(CodeDomS erializer))]
public partial class newtest : System.Web.UI.W ebControls.Text Box {
public newtest() {
InitializeCompo nent();
}
public newtest(IContai ner container) {
container.Add(t his);
InitializeCompo nent();
}
}
internal class newtest_seriali zer : CodeDomSerializ er {
public override object Deserialize(IDe signerSerializa tionManager
manager, object codeObject) {
CodeDomSerializ er serial =
(CodeDomSeriali zer)manager.Get Serializer(type of(newtest).Bas eType,
typeof(CodeDomS erializer));
return serial.Deserial ize(manager,cod eObject);
}
public override object Serialize(IDesi gnerSerializati onManager
manager, object value) {
CodeDomSerializ er serial =
(CodeDomSeriali zer)manager.Get Serializer(type of(newtest).Bas eType,
typeof(CodeDomS erializer));
CodeStatementCo llection statements =
(CodeStatementC ollection)seria l.Serialize(man ager, value);
statements.Add( new CodeCommentStat ement("//--Comment!--"));
return statements;
}
}
}