Problems with get_checked()

[Huw Lloyd]

Hi

I have a tree view with check boxes and I want to use client side script to

1. If I un-check a box then I want to un-check all children
2. If I check a box then I want to check all the parent items all the way up the hierarchy of the tree

The code I have to do this is

  

 function updateAllChildren(nodes)
                    {
                       var i;
                       for (i=0; i<nodes.get_count(); i++)
                       {
                           nodes.getNode(i).set_checked(false);

                           if (nodes.getNode(i).get_nodes().get_count()> 0)
                           {
                               updateAllChildren(nodes.getNode(i).get_nodes());
                           }
                       }
                    }

                    function clientNodeChecked(sender, eventArgs)
                    {
                        var selectedNode = eventArgs.get_node();
                        var isSelected = selectedNode.get_checked();
                        var currentNode = selectedNode.get_parent();
                        var childNodes = selectedNode.get_nodes();

                        // toggle node
                        selectedNode.set_checked(!isSelected);

                        if (isSelected) // If seleceted then push changes up hierarchy
                        {
                            while (currentNode.get_attributes().getAttribute("ParentID") != "0")
                            {
                                currentNode.set_checked(true);
                                currentNodecurrentNode = currentNode.get_parent();
                            }
                        }

                        if (!isSelected)// force uncheck for all children
                        {
                            updateAllChildren(childNodes);
                        }



                }

The code appears to be working to a degree in that

1. If I check a child item then it correctly sets all the parent items up the tree to checked
2. If I un-check an item it correctly un-checks all the children entries

The problem I am having is that if I

1. When I try to check an item that has children then nothing happens - The variable isSelected is set to false, when it should be true.
2. When I try to un-select an item that has no children then nothing happens - The variable isSelected is set to true when it should be false.

I can get it working fine with server side code, but client side would be much neater

Many thanks in advance

[Huw Lloyd]

No problem I see my error - I was stupidly changing the checked status in the code with

// toggle node
                        selectedNode.set_checked(!isSelected);

When of course the checked status was already changed before the function was called.