I cannot check all the ChildNodes in my ParentNode?

petre ricardo

hi,
I ahve create a TreeView Control wiht check boxes:

I have created a parent Tree Node as:

 

TreeNode parentNode = new TreeNode("Departments");

Then i have added four childNodes

 

for(int i=0; i< 4; i++)
{
   TreeNode childNode = new TreeNode(i.ToString());
   parentNode.Nodes.add(childNode);
}
 
TreeViewControl.Nodes.add(parentNode)

Then i need to check all the childsNodes if parentNode is Checked so....

 

 
private void tvDepartments_AfterCheck(object sender, TreeViewEventArgs e)
{
               if (e.Node.Name.ToString() == "parentNode")
                {
                   foreach (TreeNode item in e.Node.Nodes)
                   {
                        item.Checked = true; 
                   } 
                 } 
}

The problem is that the control woudlnt go into the if statement... How do i fix this?
TY

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

theLizard17y ago
you need to enable the TreeView.CheckBoxes

          TreeNode p = TreeView1.Nodes.Add("Root");
           TreeView1.CheckBoxes = true;
           for (int i = 0; i < 10; i++)
           {
               TreeNode n = new TreeNode();

               n.Checked = true;
               n.Text = "Child" + i.ToString();
               p.Nodes.Add(n);
           }

      private void TreeView1_AfterCheck(object sender, TreeViewEventArgs e)
        {
            if (e.Node.Text == "Root")
            {
                for (int i = 0; i < e.Node.Nodes.Count; i++)
                {
                    e.Node.Nodes[i].Checked = true;

                    //alternately this toggles the check state based on parents state.
                    e.Node.Nodes[i].Checked = e.Node.Nodes[i].Parent.Checked;


                }
            }
            }

After thought, this
if (e.Node.Name.ToString() == "parentNode") may be your problem. change to e.Node.Text == :Departments" may get it into the if.
0
Kirtan Patel17y ago
Check if Event Method is Selected in Property Window it may be reason its not Executing the Code
0