title: DevExpress Datagrid sorting
body: <p>In a DexEpress ASPxGridView I have a column that contains voltage. The original values look like 200, 1000, 120 but I am applying a scaling that transforms the values into 200 V, 1 kV and 120 V.</p>
  
  <p>How do I sort the column based on the original values and not the string values?</p>
  
  <p>(In a .Net datagrid I had 2 columns: one with the original data (hidden) and one with the transformed data and I used the original data column to sort the rows. Is there something similar here?)</p>