title: How to Hide selected item from a databounded combobox (Datagridviewcombobox)
body: <p>I have a bounded combobox inside datagridview ( DataGridViewComboBoxColumn ) and
  I want to hide selected item of that combobox in the next row of the grid</p>
  
  <p>for example : </p>
  
  <p>combo box values are,   </p>
  
  <pre><code>[value 1 ]                   
  [value 2 ]                       
  [value 3 ]                     
  [value 4 ]
  </code></pre>
  
  <p>ok. Just think there is 4 rows in my datagridviw, now when I select [value 1] from the combobox I dont want that value to the next combo beneath the first row (means I don't want that value to the next row combobox ) </p>
  
  <p>Is there any solution ?</p>