title: Tcl/Tk: combobox - auto complete
body: <p>I need auto completion in my <code>combobox</code>. In the following code, if I type <code>T</code>, only <code>Tennessee</code> and <code>Texas</code> should be displayed while typing <code>Tex</code> should completely fill it with <code>Texas</code>.</p>
  
  <pre class="lang-tcl prettyprint-override"><code>ttk::combobox .c -values [list Alabama Alaska Arizona Arkansas \
            California Colorado Tennessee Texas]
  pack .c -padx 10 -pady 10
  </code></pre>