title: How to add Dropdown list as a gridview item
body: <p>My form has three columns in gridview. One is quantity(dropdown list){<strong>How to add this quantity dropdownlist?</strong>}, others are price and amount. I want to calculate amount inside gridview. If I selected quantity “2” then it calculates quantity* price. How can I get the <code>selectedindexchanged</code> property for dropdown inside gridview or any other options?</p>
  
  <p>How to add dropdown list in gridview item?
  How to add values to the dropdown inside gridview?
  How to write the code for <code>selectedindexchanged</code> event for dropdown inside gridview in asp.net?</p>