title: How do I find an item by value in an combobox in C#?
body: <p>In C#, I have variable, <code>a</code>, of type <code>string</code>.</p>
  
  <p>How do I <code>find item</code> by value of <code>a</code> in <code>combobox</code> (I want find item with value no display text of combobox).</p>