title: MS excel like functionality in web ui with more complexity?
body: <p>I have swing application in which there is MS excel like functionality. User can enter data in the columns. Most of the columns are drop down lists, so use have to select from the list.</p>
  
  <p>Can this functionality be easily built in Adobe Flex or GWT?</p>
  
  <p>Second complexity is depending upon what value is selected in a column, another column should show only those items which are related to selected value of first column.</p>
  
  <p>Its not country city data but for simplicity I am taking this example.</p>
  
  <p>For example, first column is country and the second column is city. So depending upon what country is selected the second column will show only cities under that country.</p>
  
  <p>Its not just two drop down list on a page, its dropdowns of a row in a grid strructure.</p>
  
  <p>Is this possible in Adobe Flex or GWT or anyother web UI framework apart from Swing?</p>