title: Devexpress MVC GridView ComboBox Column Type DataSource
body: <p>How to alternate DataSource in ComboBox Column inside Devexpress GridView by selecting value in other ComboBox column in same row.</p>
  
  <p>It is something like cascading comboboxes but in Grid view (but in grid comboboxses don't have CallbackRouteValues property)</p>
  
  <p>Grid has two comboboxes and if user selects one value in frst the second combobox must change datasource by function that takes id as parameter from first selected combobox</p>