In the listing 23-38 page 915, you used a CompositeControlDesigner but it does not exist. Do you have an another control ?

Thanks your help.

Make sure you have included the System.Design.dll assembly as a reference in your project, and also make sure you fully qualify the class name:

System.Web.UI.Design.WebControls.CompositeControlD esigner

or include the System.Web.UI.Design.WebControls namespace using a "using" or "Imports" statement depending on your language of choice.

More info on the CompositeControlDesigner class can be found here:

http://msdn2.microsoft.com/en-us/lib...ldesigner.aspx

Devin