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Multi Level TreeView updating to Database

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heavywoody
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heavywoody asked on 04 Feb 2010, 07:40 PM
I hope you can point me in the right direction here.  The user need is a treeview where users can contribute suggestions on a data schema.  So the two items people can add are an object or a field.  Objects can have child objects and fields.  Fields have no children.  So a user can just right click and add a child or object underneath an existing object.  Objects only show a name.  Fields show four fields.  Name, Description, IsRequired, OwnerID.  They cannot delete any nodes.

Ok, I have been racking my brains on this of how to impliment it.  I see the hierarchtical examples with XML, but then I couldn't update that in real time so concurrent users would see the changes.  If I used like two tables that were joined (Object, Field), I am unsure of how the hierarchtical templates would work because they can be down like 10 levels, scattered with Fields and Objects.

Do you have any samples or suggestions how how I could impliment this?  I even though about just trying to persist the TreeView back to a table in the database, but unsure how to do that and if it could be real time enough.

Thanks!

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Valentin.Stoychev
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answered on 05 Feb 2010, 03:17 PM
Hello Christian Loepp,

Please check this blog post on how to use a self-referencing hierarchy:
http://blogs.telerik.com/valerihristov/posts/09-08-26/self-reference_hierarchy_with_telerik_treeview_for_silverlight.aspx

Please let us know if this works for you.

All the best,
Valentin.Stoychev
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Vincent
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answered on 14 May 2011, 01:01 PM
Hi... I have downloaded the example.. but it is in lower version of silverlight.. I cannot run it... Do you have another version for silverlight 4?
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Petar Mladenov
Telerik team
answered on 18 May 2011, 02:18 PM
Hi Christian Loepp,

I modified the project to use SL 4 as an environment and telerik SL 4 dlls. You only need to use Visual Studio 2010 and change the project properties - > Target SL Version from 3 to 4.

Best wishes,
Petar Mladenov
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Vincent
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answered on 18 May 2011, 02:42 PM
Thanks Telerik! I got it now!
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Vincent
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answered on 21 May 2011, 07:11 AM
HI! Is it possible to declare IValueConverter in .Web.Csproj namespace? Even I added System.Windows.Data, it still wont work... 
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Petar Mladenov
Telerik team
answered on 24 May 2011, 08:15 AM
Hello Christian Loepp,

Could you please elaborate more on your scenario and why do you need this? Are you using web services? The Web Project is used for hosting the project and using Web Services, not for application logic.

Kind regards,
Petar Mladenov
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heavywoody
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Valentin.Stoychev
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Vincent
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Petar Mladenov
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