I create a custome property names UserProfileProperty and also a class names UserProfile as the Value of that UserProfileProperty.

 UserProfile contains UserName,EMail,Birthday etc.

and also i create a web user control named UserProfileControl(it is a simple asp.net WebUserControl) for editor to edit that property.till now,the webcontrol works well,and editor can use it to input data however,the data can not be saved.

int the ApplyEditChanges i have get the UserProfile object from my  user control and set it to the PropertyData.value ;also we know that the text and DateTime the editor input are exist.

However,after the page was saved,the data disappeared, and we get a default UserProfile object in that Property...

we use the same way how we derive a simple custome property from the propertystring.. etc.  the only difference is that this property is a complext object other than a simple string or datatime.

i have marked  the UserProfile to be [Serializable] since i get an error message if i don't add this attribute.

i am not sure whether i really describe the proble clearly. so i am trying to just use one sentence to describe it again: what is the difference between the simple derived property and complex custome property?

sincerely

I am waiting online!!!