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Bind database table with treeview shows an error

vasanth_mvasanth_m Member Posts: 1
Hi emaino,

I used ur code in my project. It shows one error (Object reference is not set to an instance of the object) in this line.

((TreeNode) ht[nodeLvl.ToString() + nodeParent]).Nodes.Add(tNode);


can u please help me in this!
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