Use recursion (methods that call themselves while passing
in a child object). Strip out all the junk you don't need.
CustomItem was my class stored in the .Tag object of
each node. This way, I could find nodes based on
a wide variety of criteria elsewhere.
public TreeNode SelectedTreeNode = null;
public void SelectNodeByUniqueKey(TreeView tv, string uniqueKey)
{
TreeNode node = null;
CustomItem customItem = null;
try
{
tv.SelectedNode = null;
this.SelectedTreeNode = null;
node = tv.Nodes[0];
customItem = (CustomItem)node.Tag;
if (customItem.StringID == uniqueKey)
{
tv.SelectedNode = node;
this.SelectedTreeNode = tv.SelectedNode;
return;
}
SelectNodeByUniqueKey(node, uniqueKey);
}
catch (Exception) { throw; }
}
private void SelectNodeByUniqueKey(TreeNode parentNode,
string uniqueKey)
{
TreeNode node = null;
CustomItem customItem = null;
try
{
for (int i = 0; i < parentNode.Nodes.Count; i++)
{
node = parentNode.Nodes
;
customItem = (CustomItem)node.Tag;
if (customItem.StringID == uniqueKey)
{
node.TreeView.SelectedNode = node;
this.SelectedTreeNode = node.TreeView.SelectedNode;
return;
}
if (this.SelectedTreeNode == null)
{
SelectNodeByUniqueKey(node, uniqueKey);
}
}
}
catch (Exception) { throw; }
return;
}
--
Robbe Morris - 2004-2006 Microsoft MVP C#
I've mapped the database to .NET class properties and methods to
implement an multi-layered object oriented environment for your
data access layer. Thus, you should rarely ever have to type the words
SqlCommand, SqlDataAdapter, or SqlConnection again.
http://www.eggheadcafe.com/articles/adonet_source_code_generator.asp
Sean said:
I have a Treeview control like the following:
paren1 ''(Name = P1)
Parent2 ''(Name = P2)
Child1 ''(Name = P2C1)
Child2 ''(Name = P2C2)
Parent3 ''(Name = P3)
Parent4 ''(Name = P4)
Child1 ''(Name = P4C1)
Parent5 ''(Name = P5)
Parent6 ''(Name = P6)
1. How do I loop through the tree and find the index or Name of the node
whose Name = P2C2 and then select it.
2. I want to get the index or Name whose Name = P5 and select it.
