usercontrols... collection value isnt saved when changed at design time

hmm I dont know how to explain it because I dont really know what I'm doing :)
I have a class which inherits from CollectionBase. And I have a public property in my usercontrol of that type, so:

VB Code:

Public myClass:Inherits CollectionBase
End Class
 
...
'In user control:
<Browsable (true)> _
Public Property myClass SomeCollection
'Get, Set....
End Property

now when I add the usercontrol to my form, and I look at the SomeCollection property, I can click on a little "..." button and the VS Collection Editor shows up... I can add items, but the thing is that the items all disappear after I run the project (so when you check the SomeCollection property, there is no items in the collection anymore, all get cleared)....
I think I'm doing something fishy here, but I cant figure out what... anyone else ever had this problem?
let me know if I'm not explaining enough

Hi.

You need to set the DesignerSerializationVisible attribute to Content.

Also, you might need to create a typeconverter depending of the object in the collection.

I suggest taking a look at http://www.divil.co.uk/net/articles/...oncontrols.asp. He has a very good explanation and demo of how to use custom collections in usercontrols.

Hope it helps.

Good luck.