Hello,

I have made a test web application as described in the book which is called Test_WebParts.

After I made the Calculator usercontrol and the Time custom control and added them to the DeclarativeCatalogPart When I run the application if I click the btnCatalogView to enter the Catalog display mode I get an Argument Exception:
"The specified display mode is currently disabled on this page. Make sure personalization is enabled for the current user.
Parameter name: value".

Every thing looks to me just like the book code.Could any one help me to solve this problem?.

If my question is not clear please tell me so I try to make it more clear because I am still stuck in this problem.