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getting Index was out of range. error while running a loop for treenode collection

I have saved my tree nodes collection in a session object and, i am using that collection to load the tree again.

I am running the below code to add nodes into the tree view control
but i am getting this error when i run this code.
Index was out of range. Must be non-negative and less than the size of the collection.\r\nParameter name: index

when i did some testing then i found out the when the nodes are added to the tree view then "nodes.count" is decreasing by1.
and this error comes when the loops run half +1 time of nodes.count.

any one could help me out here.

TreeNodeCollection nodes = _defaultPageViewState.Nodes; 
            if (nodes == null) { return; }
            for (int i = 0; i <= nodes.Count; i++)  {
                ParentTreeView.Nodes.Add(nodes[i]);
            }

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siancell

The for loop should be like this

TreeNodeCollection nodes = _defaultPageViewState.Nodes; 
            if (nodes == null) { return; }
            for (int i = 0; i <= nodes.Count-1; i++)  {
                ParentTreeView.Nodes.Add(nodes[i]);
            }
//OR
 
TreeNodeCollection nodes = _defaultPageViewState.Nodes; 
            if (nodes == null) { return; }
            for (int i = 0; i < nodes.Count-1; i++)  {
                ParentTreeView.Nodes.Add(nodes[i]);
            }

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siancell

Sorry, the last code snippet should be like this

TreeNodeCollection nodes = _defaultPageViewState.Nodes; 
            if (nodes == null) { return; }
            for (int i = 0; i < nodes.Count; i++)  {
                ParentTreeView.Nodes.Add(nodes[i]);
            }

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Wizardskills

Yep you need the "-1" after the count in the for loop.

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tiagosalgado

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tiagosalgado

Sorry but change the line inside foreach to this one

ParentTreeView.Nodes.Add(node);

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