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get child node count.

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Karl Ranville
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Karl Ranville asked on 16 Jul 2013, 02:01 AM
Hi

I want to get the count of child nodes of a particular node in js? I searched the docs but didnt get anything useful. So please help me.

Thanks for your replies
Karl

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Shinu
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answered on 16 Jul 2013, 06:45 AM
Hi Karl,

Please have a look into the following JavaScript code i tried to get the count of all child nodes of a particular RadTreeNode. If you need the count of immediate child nodes only, use the get_nodes().get_count() instead of get_allNodes() method.

JavaScript:
<script type="text/javascript">
    function getChildnodecount() {
        var radtreeview = $find('<%=RadTreeView1.ClientID %>');
        alert("Child Nodes Count : " + radtreeview.findNodeByText("Node 1").get_allNodes().length);
    }
</script>

Thanks,
Shinu.
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Karl Ranville
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answered on 23 Sep 2013, 02:56 AM
Hi shinu
There is a treeview with three levels of nodes each with child nodes. How to automatically check a parent node when the child node is checked?
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Shinu
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answered on 23 Sep 2013, 06:07 AM
Hi Karl Ranville,

Please try the following JavaScript that I have tried to check the parent node when the child node is checked.

JavaScript:
<script type="text/javascript">
    function OnClientNodeChecked1(sender, args) {
        var node = args.get_node();      
        if(node.get_level()!=0)
            node.get_parent().check(true);
    }
</script>

Thanks,
Shinu.

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Karl Ranville
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answered on 24 Sep 2013, 02:40 AM
Thankyou shinu. Now the parent node remain checked even if no child is checked. How to uncheck parent if no child is checked?
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Shinu
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answered on 24 Sep 2013, 03:58 AM
Hi Karl,

This feature is available out of the box. Set the CheckChildNodes, TriStateCheckBoxes property of the RadTreeView to True to achieve your requirement. You don't need the previous JavaScript now.

Thanks,
Shinu.
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Shinu
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Karl Ranville
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