.net - Hiding/Displaying Label based on Drop-down selection value -

.net - Hiding/Displaying Label based on Drop-down selection value -

i trying display bottom label based on selection made in 1st (2nd & 3rd selection); tried playing around visible, can't seem create progress. input appreciated.

<tr> <td align="left" style="font-size:medium; font-weight:normal;"> <asp:dropdownlist id="dropdownlist12" runat="server"> <asp:listitem>enter selection</asp:listitem> <asp:listitem>yes - due date in 3 days</asp:listitem> <asp:listitem>yes - due date in 14 days</asp:listitem> <asp:listitem>no</asp:listitem> </asp:dropdownlist> </td> <td> &nbsp;</td> </tr> <tr> <td align="left" style="font-size:medium; font-weight:normal;"> &nbsp;</td> <td> &nbsp;</td> </tr> <tr> <td align="left" style="font-size:medium; font-weight:normal;"> <asp:label id="label13" runat="server" style="font-weight: 700" text="fast track reason"></asp:label> </td> <td> &nbsp;</td> </tr>

i set bottom label in update panel

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