How I dispaly checked RadTreeViewItems`name in RadRichTextBox?

[jiang]

Like RadTreeView.png.

I want to dispaly like this [Homer;Bart;Maggie;Maude] in RadRichTextBox .

[Iva Toteva]

Hello jiang,

The first solution is to handle the Checked and Unchecked events of RadTreeView like this:

private void AddBeginning()
{
    this.radRichTextBox1.Insert("[");
}

private void AddEnding()
{
    DocumentPosition position = new DocumentPosition(this.radRichTextBox1.Document);
    position.MoveToFirstPositionInDocument();
    position.MoveToNext();
    //Delete the last unnecessary ";" symbol if there are more than one names in the list
    if (this.radRichTextBox1.Document.CaretPosition != position)
    {
        this.radRichTextBox1.Delete(true);
    }
    this.radRichTextBox1.Insert("]");
}

// A Handler for both the Checked and Unchecked event of RadTreeView
private void radTreeView_CheckChanged(object sender, Telerik.Windows.RadRoutedEventArgs e)
{
    RadTreeView treeView = sender as RadTreeView;
    this.radRichTextBox1.Document.Selection.SelectAll();
    AddBeginning();
    foreach (var check in treeView.CheckedItems)
    {
        this.radRichTextBox1.Insert(String.Format("{0};", check.ToString()));
    }
    AddEnding();
}

In this way, on every check/ uncheck, you go through all items.

There is also a more complex solution, which searches for the unchecked item in RadRichTextBox and deletes it, thus preserving the order of the elements. If you are interested, please refer to the attached demo.

Best wishes,
Iva
the Telerik team