Hi all,
I have 2 dropdownlist in which i want one dropdownlist to be refreshed on click of button, but when i click on that button, same dropdown appears on page.
Please find the code which i used for this :
<asp:UpdatePanel ID="updPanelDDLState" runat="server"><ContentTemplate><tr><td class="td">Location/State</td><td><asp:DropDownList CssClass="txtfld-popup" ID="ddlState" OnSelectedIndexChanged="ddlState_SelectedIndexChanged" runat="server" AutoPostBack="true"></asp:DropDownList><asp:ImageButton ID="ImgRefreshButton" ImageUrl="~/images/click-here1.png" AlternateText="Click here to generate new code" runat="server" CausesValidation="false" /><asp:RequiredFieldValidator CssClass="error_msg" ID="RequiredFieldValidator1" ControlToValidate="ddlState" runat="server" ErrorMessage="Please enter State" InitialValue="--Select--" SetFocusOnError="true"></asp:RequiredFieldValidator></td></tr></ContentTemplate><Triggers><asp:AsyncPostBackTrigger ControlID="ddlState" /></Triggers></asp:UpdatePanel>