title: how to fill webGrid through dropdown selection in mvc 3?
body: <p>
  Hi; i want to fill webGrid after selection dropdownlist. But i can not. i've been selected drb1 and then filling drb2. Bu i can not fill webGrid1 after selection drb2. Also i can not fing any sample by googling.How to fill webgrid? My aim is descripted below:
  </p>
  <p><img src="https://i.stack.imgur.com/da1rA.png" alt="enter image description here" /></p>