Is there any to set the visibility of xtra tree list nodes dynamically

Question

I am using xtratreelist in my application with only first level and I want to make some of the nodes visible but not all. Here is the code, but after that all the not are showing in the list

TreeList tr = new Treelist();

for (int x = 0; x < tr.Nodes.Count; x++)
{
    tr.Nodes[x].Visible = false;
}

score 1 · Answer 1 · answered May 20 '13 at 17:05

I suggest you use the NodesIterator, here is an example, and it works for me :

The data class :

public class Service
{
    public string Name { get; set; }
    public bool Visible { get; set; }
}

And in my form :

private void TreeForm_Load(object sender, EventArgs e)
{
     treeList1.DataSource = Service.GetServices();
     treeList1.NodesIterator.DoLocalOperation(setNodeVisibility, treeList1.Nodes);
}

private void setNodeVisibility(DevExpress.XtraTreeList.Nodes.TreeListNode node)
{
     var service = treeList1.GetDataRecordByNode(node) as Service;
     if (service == null)
         return;

     node.Visible = service.Visible;
}

score 0 · Answer 2 · answered May 20 '13 at 11:14

0

Go through the following links

FindNodeByID

FindNodeByFieldValue

FindNodeByKeyID

answered May 20 '13 at 11:14

Rajeev Kumar

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I got the target node like this TreeListNode node = tr.FindNodeByKeyID(key_id); node.Visible = false; but not hiding the nodes – Usman Hussain May 20 '13 at 13:43
Did you get any exception ?? – Rajeev Kumar May 21 '13 at 04:16

Is there any to set the visibility of xtra tree list nodes dynamically

2 Answers2