title: How to 'get at' the WPF combobox PART_EditableTextbox because combobox not getting highlighted?
body: <p>My WPF combobox is populated with a different set of strings each click of a button. There are other controls on the window as well. The combobox is the 'first' (top) in the window, but the text doesn't get highlighted. When the user tabs through the controls, the text DOES get highlighted, but when it's the first on the window, it doesn't.</p>
  
  <p>Maybe i need to force a highlight on the individual textbox control 'within' the combobox itself, but how would i do this? I couldnt seem to find the internal 'structure' of this control anywhere. Could anyone help here?</p>
  
  <p>Jack</p>