C# help treeview and checkbox content

I really can't get out of this one.

I got treeview items in treeviews. The treeview items contain checkboxes with content. How do i get the content and put it in a list. currently i got this

        foreach (TreeViewItem item in treeView1.Items)
        {


            foreach (TreeViewItem childItem in item.Items)
            {


                CheckBox checkBoxTemp = childItem.Header as CheckBox;

                if (checkBoxTemp == null) continue;

                optieListBox.Items.Add(checkBoxTemp.C开发者_如何学Goontent);
            }



        }

---

I am not sure if i get your question correctly, but you can try this.

        foreach (TreeViewItem childItem in item.Items)
        {
            CheckBox cbx = null;
            //finds first checkbox
            foreach(object child in childItem.Items){
                cbx = child as CheckBox;
                if (cbx != null) break;
            }

            ctrList.Items.Add(cbx.Content);
        }

---

Bind your TreeView to a collection instead. That way you won't have to manipulate UI components to access the data, you will access the data directly.

The other way to do this is through recursion: Declare optieListBox list at class level and call GetContainers() method as an entry point call. optieListBox list should give you content list for all checked items in treeview.

List<string> optieListBox = new List<string>();

        private List<TreeViewItem> GetAllItemContainers(TreeViewItem itemsControl)
        {
            List<TreeViewItem> allItems = new List<TreeViewItem>();
            for (int i = 0; i < itemsControl.Items.Count; i++)
            {
                // try to get the item Container  
                TreeViewItem childItemContainer = itemsControl.ItemContainerGenerator.ContainerFromIndex(i) as TreeViewItem;
                // the item container maybe null if it is still not generated from the runtime  
                if (childItemContainer != null)
                {
                    allItems.Add(childItemContainer);
                    List<TreeViewItem> childItems = GetAllItemContainers(childItemContainer);
                    foreach (TreeViewItem childItem in childItems)
                    {
                        CheckBox checkBoxTemp = childItem.Header as CheckBox;

                        if (checkBoxTemp != null)
                            optieListBox.Items.Add(checkBoxTemp.Content);

                        allItems.Add(childItem);
                    }
                }
            }
            return allItems;
        }

        private void GetContainers()
        {
            // gets all nodes from the TreeView  
            List<TreeViewItem> allTreeContainers = GetAllItemContainers(this.objTreeView);
            // gets all nodes (recursively) for the first node  
            TreeViewItem firstNode = this.objTreeView.ItemContainerGenerator.ContainerFromIndex(0) as TreeViewItem;
            if (firstNode != null)
            {
                List<TreeViewItem> firstNodeContainers = GetAllItemContainers(firstNode);
            }
        }

---

Try this:

List<string> values = new List<string>;
foreach (string node in treeView.Nodes)
{
    values.Add(node);
}

//Loop through nodes

Also, if the tree view's nodes have children (nodes), try this instead:

List<string> values = new List<string>;

//Called by a button click or another control
private void getTreeValues(Object sender, EventArgs e)
{
    foreach (string node in treeView.Nodes)
    {
        TreeNode child = (TreeNode)child;
        values.Add(node)
        getNodeValues(child);
    }
    foreach (string value in values)
    {
        Console.WriteLine(value + "\n");
    }
}

//Recursive method which finds all children of parent node.
private void getNodeValues(TreeNode parent)
{
    foreach (string child in parent.Nodes)
    {
        TreeNode node = (TreeNode)child;
        values.Add(child);
        if (nodes.Nodes.Count != 0) getNodeValues(child);
    }
}