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# ASP.NET TreeView Sort

, 11 Sep 2011 CPOL
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Easy way to sort nodes in a TreeView using a recursive function.
A few days ago, I needed to sort the nodes of a tree view. The solutions that I found over the Internet did not please me, so I decided to write my own. This solution is a simple recursive function that sorts tree nodes in an alphabetic order.

TreeView mytree = new TreeView();

Then simply call the sort function with the main node as the argument:

sort(node);

Here is the recursive function:

private void sort(TreeNode node)
{
foreach (TreeNode n in node.ChildNodes)
sort(n);
try
{
TreeNode temp = null;
List<TreeNode> childs = new List<TreeNode>();
while(node.ChildNodes.Count>0)
{
foreach (TreeNode n in node.ChildNodes)
if (temp == null || n.Text[0] < temp.Text[0])
temp = n;
node.ChildNodes.Remove(temp);
temp = null;
}
node.ChildNodes.Clear();
foreach (TreeNode a in childs)
}
catch { }
}

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 incorrect comparison Member 1024692319-Nov-14 3:04 Member 10246923 19-Nov-14 3:04
 compare full words Klimovec12-Apr-12 2:49 Klimovec 12-Apr-12 2:49
 Heyy it worked for me. Currently i have a treeview which pop... rjkumar19879-Jan-12 2:27 rjkumar1987 9-Jan-12 2:27
 Re: just replace the logical comparison "n.Text[0] < temp.Text[0... brunofer200714-Jan-12 23:59 brunofer2007 14-Jan-12 23:59
 1-The datasource should be sort not the tree in asp.net. An... JoePatent13-Sep-11 8:03 JoePatent 13-Sep-11 8:03
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 Could I ask, why can't you use the default TreeView Sort met... George Swan11-Sep-11 20:11 George Swan 11-Sep-11 20:11
 Re: Hello George, as you can see in the title, this solution is ... brunofer200711-Sep-11 22:21 brunofer2007 11-Sep-11 22:21
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