I have a RichTextBox, a Button and a List Box with Anchor set to Top, Bottom, Right.  
 Whenever I change the form size and then change their parent (from one tab of a TabControl to another) their position gets messed up.

<http://imgur.com/WiQhRJU,FyFIQTL,7K7HMTt,Nqrm20y>

First image: Before re-size ✓  

Second image: After re-size ✓  

Third image: After re-size on different tab ✖  

Fourth image: Switched back to original tab ✖

This is the code i use to change the parent:

```
private void tabTabs_Selected(object sender, TabControlEventArgs e)
{
    if (tabTabs.SelectedTab == tabChat || tabTabs.SelectedTab == tabCmd)
    {
        lstUsers.Parent = tabTabs.TabPages[tabTabs.SelectedIndex];
        rtbSend.Parent = tabTabs.TabPages[tabTabs.SelectedIndex];
        btnSend.Parent = tabTabs.TabPages[tabTabs.SelectedIndex];
    }
}

```