how to focus the text in the textbox

[Amritha poojary]

I have an SlectedIemchanged event in the treeview...
when i select item it should call the got focus function for particular selected item...

thank you

[zmbd]

you will need to show your code.
Please format it by selecting your posted script and clicking on the [CODE/] format button in the tool bar.

[Amritha poojary]

example code:

private void selected(object sender,  RoutedPropertyChangedEventArgs<object> e)
        {
                TreeViewItem t;
                t = (TreeViewItem)tvMain.SelectedItem;
                MessageBox.Show(t + " ");
                StackPanel s = (StackPanel)t.Header;
                List<TextBlock> l = new List<TextBlock>(4);
 
                foreach (TextBlock children in s.Children)
                {
                    l.Add(children);
                }
 
                string ch = l[3].Text;
                string[] strarr1 = ch.Split('-');
                textBox_GotFocus(strarr1[0], strarr1[1]);
 
        }

when i click on the treeview it should enter the textBox_GotFocus function and particular textbox get the focus....
if i click on the child instead of focusing textbox it will go to its parent node

   private void textBox_GotFocus(string str1,string str2)
        {
            int i=Convert.ToInt16(str1);
            int j=Convert.ToInt16(str2);
            int k = j - i;
            PacketDisplay2.SelectionStart = i * 3;
            PacketDisplay2.SelectionLength = (k + 1) * 2 + k;
            PacketDisplay2.Focus();
}
 

thank you