Hi Cuong,

I use Telerik's RadMenu exclusively, but since no one else has responded maybe I can yield some insight into your problem.

To diagnose problems like these, I suggest looking at the menu navigation provider and seeing how the relevant values are being used.  Looking in Library/Providers/NavigationProviders/DNNMenuNavigationProvider/DNNMenuNavigationProvider.vb, I see the CSSSeperator attribute being used as follows:

If String.IsNullOrEmpty(SeparatorHTML) = False Then
 If CSSSeparator <> "" Then strSeparatorClass = CSSSeparator
 strSeparator = SeparatorHTML
End If

...

If String.IsNullOrEmpty(strSeparator) = False AndAlso strType = "All" Then 'strType <> "Left" AndAlso strType <> "Right" Then
 objMenuItem.LeftHTML &= GetSeparatorMarkup(strSeparatorClass, strSeparator)
End If

So, SeperatorHTML must be specified in order for this attribute to be used.  Once the strSeparatorClass is initialized, it is only used when strSeparator is non-empty AND strType == "All".  Only then is the generated markup value appended to the results.

Pretty confusing, huh?

Brandon

Yeah -- I suspected as much when I saw that those property definitions were all commented out in the provider source.

Brandon