Need Help with Dynamic Code

[Warren]

Let me start by saying that I code in VB and not C#. I am still learning C# and actually write some classes in C# but the majority of my code is in VB, so any examples would be better supplied in VB. I am also new to developing with Silverlight and WP7.  With that being said here is my dilemma:

 

I am trying to use the jump list 100% within code. This is because I am dynamically creating PivotItems depending on different criteria and these new PivotItems have the RadJumpList on them. I am able to create the list and display a basic list (no group descriptors) with no problem.

 

My issue is with using descriptors (Group or Sort).
I have information I want to display for like this example:

(Servers are unique but services could be the same across servers - hence the need for grouping)

Server 1

Service 1

Service 2

Server 2

Service 3

Service 4

Server 3

Service 5

Service 6

 

The list of servers & services are brought in by a WCF object List(Of T) :

'irreverent fields removed for simplicity
Function
Dim svcList As List(Of aService) =  e.Result
End Function

Public Structure aService
    Public Server As String
    Public Service As String
End Structure

The WCF source content can be visualized like this:

Dim svcList As New List(Of aService)
svcList.Add(New aService With {.Service = "service 1", .Server = "Server 1"})
svcList.Add(New aService With {.Service = "service 2", .Server = "Server 1"})
svcList.Add(New aService With {.Service = "service 3", .Server = "Server 2"})
svcList.Add(New aService With {.Service = "service 4", .Server = "Server 2"})
svcList.Add(New aService With {.Service = "service 5", .Server = "Server 3"})
svcList.Add(New aService With {.Service = "service 6", .Server = "Server 3"})

I can create the basic ItemsSource like this (in my testing ):

Dim radJumpList As New RadJumpList
Dim sList As New List(Of String)
For Each svc As aService In svcList
    sList.Add(svc.Service)
Next
radJumpList.ItemsSource = sList

Side question: Is there a better way to process the list directly with .ItemsSource instead of iteration with For Each Next?

This is the extent of how far I have been trying to get things working. I cannot figure out how to use the GenericGroupDescriptor or GenericSortDescriptor to properly group Servers/Services & sort properly. (Actually have not even got to sort yet as I can't group properly yet). I would like to sort the entier list by Server then Services for each server.

I think I need to do something like this but it errors and I cannot figure out the proper way.

Dim groupByServer As New GenericGroupDescriptor(Of aService, String)(Function(s) s.Server)
radJumpList.GroupDescriptors.Add(groupByServer)

I'm looks for help on how to get past this road block.  Thanks.

[Deyan]

Hello Warren,

Thanks for contacting us and sorry for the delay with our answer.

We have a couple of examples containing code snippets that demonstrate how grouping with RadJumpList is accomplished.

Please review our Online Help for RadJumpList:

RadJumpList Overview

You can expand the Features section where there are articles explaining how GroupDescriptors are used.

As for the question concerning the processing of the servers' list I am not quite sure that I correctly understand it. You can process a list as an IEnumerable or by indexing it if the interface supports it.

I hope this helps.

Do not hesitate to get back to us in case you have further questions or need assistance.

Kind regards,
Deyan
the Telerik team