Multiple Select Dropdown list control

Question

I am looking for a Mulitple select dropdown list in asp.net where on select of one item other control also gets populated. I do not want to use 3rd party tool, suggest a control using Jquery or any thing else.

Answer 1

Use List box for multiple selection:

<asp:ListBox ID="ListBox1" runat="server" SelectionMode="Multiple" Rows="1"></asp:ListBox>