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ASP.NET 2.0 Basics If you are new to ASP or ASP.NET programming with version 2.0, this is the forum to begin asking questions. Please also see the Visual Web Developer 2005 forum.

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August 21st, 2006, 06:43 AM

mahmutmol

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Join Date: Aug 2006

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treeview

i have a problem with treeview in asp .net.
i derive TreeNode class to MyTreeNode, and add some fields.
then i add MyTreeNode objects to the treeview instead of TreeNode objects.
in the
protected void TreeView1_TreeNodeExpanded(object sender, TreeNodeEventArgs e)

event i use

((MyTreeNode) e.Node.ChildNodes[i]).Kod

but i got the the following error

Unable to cast object of type 'System.Web.UI.WebControls.TreeNode' to type 'MyTreeNode'.

can you help me?

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