How to enable mnemonic support for controls placed within a PopupControlContainer

The controls placed within the PopupControlContainer do not respond to mnemonics. The reason for this behavior is that the main form gets focus immediately after the PopupControlContainer is displayed. However, the work around here would be to set the focus back to the PopupControlContainer in the PopupControlContainer's Popup event handler, so that the access keys work fine (refer to code sample below).

[C#] private void popupControlContainer1_Popup(object sender, System.EventArgs e) {              this.popupControlContainer1.Focus(); }

[VB.NET] Private  Sub popupControlContainer1_Popup(ByVal sender As Object, ByVal e As System.EventArgs)              Me.popupControlContainer1.Focus() End Sub