RadTreeView - Problem when is applied filter

[Henrique]

Dear Support Team,

We are using a RadTreeView and we found a problem.

When is applied the filter with some text and after is deleted the filter text,
the 'status mode' of some nodes is changed getting the wrong state.

Please run the attached program and following the steps below:

1- Uncheck some child nodes
2- Apply the filter with some text
3- Delete filter text

How can we solve this issue? Could you advise?

Thanks in advance!

Best regards,

Maurer

[Henrique]

Code bellow:

 

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using Telerik.WinControls.Enumerations;
using Telerik.WinControls.UI;

namespace RadTreeViewFiltredTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

       
        private void Form1_Load(object sender, EventArgs e)
        {

            radTreeView1.CheckBoxes = true;
            radTreeView1.TriStateMode = true;

            var rootNode = new RadTreeNode("Root Node");
            
            radTreeView1.Nodes.Add(rootNode);

            // Create two parent nodes
            var parentNode1 = new RadTreeNode("First Parent");
            var parentNode2 = new RadTreeNode("Second Parent");

            // Add the parent nodes to tree view's nodes collection
            rootNode.Nodes.AddRange(parentNode1, parentNode2);
            
            
            // Create a child node
            var radTreeNodes2 = new List<RadTreeNode>
            {
                new RadTreeNode("nA.1"),
                new RadTreeNode("nB.2"),
                new RadTreeNode("nC.3"),
                new RadTreeNode("nD.4"),
                new RadTreeNode("nE.5"),
            };
            
            var radTreeNodes = new List<RadTreeNode>
            {
                new RadTreeNode("nA.1"),
                new RadTreeNode("nB.2"),
                new RadTreeNode("nC.3"),
                new RadTreeNode("nD.4"),
                new RadTreeNode("nE.5"),
            };
            
            // Add the child node to the first parent's nodes collection
            parentNode1.Nodes.AddRange(radTreeNodes);
           
            // Remove the child from the first parent collection and add it to the second parent nodes collection
            //parentNode1.Nodes.Remove(childNode);
            parentNode2.Nodes.AddRange(radTreeNodes2);
            rootNode.ExpandAll();
            rootNode.Checked = true;

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            radTreeView1.Filter = textBox1.Text;

            if(radTreeView1.TopNode != null)
                radTreeView1.TopNode.ExpandAll();
        }
    }
}

[Hristo]

Hello Henrique,

Thank you for writing.

Indeed the observed behavior is not correct and I have logged an issue on our feedback portal, here: FIX. RadTreeView - incorrect check state when the control is in TriState and applying a filter. I have also added a vote for it on your behalf, as well as I have updated your Telerik points. Additionally, you can subscribe to the item and be updated with all of its status changes.

The item is already in development and the fix will be made publicly available with our next official release.

I hope this helps. Should you have further questions please do not hesitate to write back.

Regards,
Hristo
Telerik by Progress