Home / Community & Support / Developer Productivity Tools Forums / Silverlight > TreeView > Custom number sorting

• MiddleTommy Intermediate

  Posted on Jan 25, 2012 (permalink)

  I am trying to find a way to have the TreeView sort the HierarchicalDataTemplate items. I can do this with a IValueConverter that changes the bound Items to a CollectionView with SortDescriptions however I need a custom sort. I want to sort strings Numerically
  
  1A
  2A
  3A
  10A
  20A 
  
  Normal sorting organizes these as
  
  1A
  10A
  2A
  20A
  3A 
  
  How can I get this custom sorting? I have an IComparer<string> that will provide the proper mechanism for the sorting but cant find where to plug it into.
  

  Reply

• Kiril Stanoev Kiril Stanoev

  Posted on Jan 26, 2012 (permalink)

  Hi Tommy,

  I found couple of links that might be useful in your scenario:
  
  How to achieve Natural(human alpha-numeric ) Sorting, for silverlight datagrids using ViewModel? 
  
  Natural Sorting in C#
  
  Take a look at them. In addition, please take a look at the attached sample which demonstrates one possible solution to your scenario. Let me know if you need further assistance.
  
  

  Greetings,
  Kiril Stanoev
  the Telerik team

  Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get it now >>

  Attached files

  • ID505322.zip

  Reply

• MiddleTommy Intermediate

  Posted on Jan 27, 2012 (permalink)

  I solved this by modifying a basic implementation of ICollectionView I found at
  http://www.scottlogic.co.uk/blog/colin/2010/03/binding-a-silverlight-3-datagrid-to-dynamic-data-via-idictionary-updated/ 
  Then in the HierarchicalDataTemplate I put a converter on the ItemsSource that wraps the bound items in a collection view.

  Reply

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