Move List Items Up and Down Using jQuery in ASP.Net ListBox control

Sometimes, we require moving/scrolling the list items in the ListBox control up and down to sort manually. This little code snippet will help us to do that using jQuery library.

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<script src="scripts/jquery-1[1].3.2.js" type="text/javascript"></script>

     <script type="text/javascript">

         function MoveDown() {

             var selectedOption = $('#ListBox1 > option[selected]');

             var nextOption = $('#ListBox1 > option[selected]').next("option");           

             if ($(nextOption).text() != "") {             

                 $(selectedOption).remove();

                 $(nextOption).after($(selectedOption));

             }                

         }

         function MoveUp() {

             var selectedOption = $('#ListBox1 > option[selected]');

             var prevOption = $('#ListBox1 > option[selected]').prev("option");            

             if ($(prevOption).text() != "") {

                 $(selectedOption).remove();

                 $(prevOption).before($(selectedOption));

             }

           }

    </script> 

<form id="form1" runat="server">

    <div>

    <table>

  <tr>

    <td rowspan=2>     

      <asp:ListBox ID="ListBox1" runat="server" Rows="10">

          <asp:ListItem>1</asp:ListItem>

          <asp:ListItem>2</asp:ListItem>

          <asp:ListItem>3</asp:ListItem>

          <asp:ListItem>4</asp:ListItem>

          <asp:ListItem>5</asp:ListItem>

          <asp:ListItem>6</asp:ListItem>

        </asp:ListBox>

    </td>

    <td><input type="button" value="Up" onclick="MoveUp()"></td>

  </tr>

  <tr>

    <td><input type="button" value="Down" onclick="MoveDown()"></td>

  </tr>

</table>

    </div>

    </form>

You need to access the ListBox using <%=ListBox1.ClientID%> in jQuery if in case your ListBox control is in a page that has MasterPage.