Well, never mind. It seems this does work correctly after all. Peter
-----Original Message----- From: Discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] On Behalf Of Peter Osucha Sent: Thursday, May 01, 2008 9:51 AM To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM Subject: [ADVANCED-DOTNET] CustomNodeSorter for TreeView... I'm having trouble correctly implementing a CustomNodeSorter for a treeview control. I've got a TreeView control where each TreeNode has as its Tag an object (TreeItem) that I made. One of the properties of TreeItem is 'IsFolder' for indicating if the TreeNode acts as a folder in the custom treeview I'm implementing. For nodes displayed in the treeView, I desire that nodes be arranged such that in any branch, the folder nodes are shown first in alphabetical order and then the non folder nodes are shown in alphabetical order - just like in Windows Explorer. However, I'm not implementing the CustomNodeSorter correctly. Can someone please point out the adjustments I need to make? Sincerely, Peter ------------------------------ public class CustomNodeSorter : IComparer { /// <summary> /// This custom node sorter always shows a tree node with folders first and sorted alphabetically. /// </summary> /// <param name="x"></param> /// <param name="y"></param> /// <returns></returns> public int Compare ( object x, object y ) { TreeNode tx = ( TreeNode ) x; TreeNode ty = ( TreeNode ) y; TreeItem tix = ( TreeItem ) tx.Tag; TreeItem tiy = ( TreeItem ) ty.Tag; // Separate folders from other nodes. if ( tix.IsFolder & !tiy.IsFolder ) { return 1; } if ( !tix.IsFolder & tiy.IsFolder ) { return -1; } // Neither or both are folders so compare alphabetically. return string.Compare ( tx.Text, ty.Text ); } } =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
